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231210023333031 = 3235988078125343
BaseRepresentation
bin110100100100100011000111…
…010011110010110010100111
31010022122110111001201000001200
4310210203013103302302213
5220301121111433124111
62135424230212053543
766462241626442251
oct6444430723626247
91108573431630050
10231210023333031
11677416905a19a6
1221b220750042b3
139c0201c782802
1441148a67b2cd1
151bae4839c0256
hexd248c74f2ca7

231210023333031 has 24 divisors (see below), whose sum is σ = 334938380175360. Its totient is φ = 153693184028496.

The previous prime is 231210023332879. The next prime is 231210023333099. The reversal of 231210023333031 is 130333320012132.

231210023333031 is a `hidden beast` number, since 2 + 3 + 1 + 21 + 0 + 0 + 2 + 333 + 303 + 1 = 666.

231210023333031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231210023333031 - 210 = 231210023332007 is a prime.

It is a super-2 number, since 2×2312100233330312 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231210023332986 and 231210023333004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231210023343031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24392746 + ... + 32518088.

It is an arithmetic number, because the mean of its divisors is an integer number (13955765840640).

Almost surely, 2231210023333031 is an apocalyptic number.

231210023333031 is a deficient number, since it is larger than the sum of its proper divisors (103728356842329).

231210023333031 is a wasteful number, since it uses less digits than its factorization.

231210023333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8134515 (or 8134512 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 231210023333031 its reverse (130333320012132), we get a palindrome (361543343345163).

The spelling of 231210023333031 in words is "two hundred thirty-one trillion, two hundred ten billion, twenty-three million, three hundred thirty-three thousand, thirty-one".

Divisors: 1 3 9 359 1077 3231 8807 26421 79263 3161713 8125343 9485139 24376029 28455417 73128087 2916998137 8750994411 26252983233 71559895801 214679687403 644039062209 25690002592559 77070007777677 231210023333031