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210223213133231 = 2921804713850953
BaseRepresentation
bin101111110011001001100111…
…111100010011110110101111
31000120100010212011202100022102
4233303021213330103312233
5210023244120030230411
62023035113314405315
762165061124212314
oct5763114774236657
91016303764670272
10210223213133231
1160a901893400a1
121b6b280089083b
13903bc6b9ca75c
1439cac01b62d0b
1519485c5316d3b
hexbf3267f13daf

210223213133231 has 12 divisors (see below), whose sum is σ = 217734337496832. Its totient is φ = 202962875191104.

The previous prime is 210223213133221. The next prime is 210223213133249. The reversal of 210223213133231 is 132331312322012.

It is a de Polignac number, because none of the positive numbers 2k-210223213133231 is a prime.

It is a super-2 number, since 2×2102232131332312 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210223213133194 and 210223213133203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210223213133221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8252051 + ... + 22103003.

It is an arithmetic number, because the mean of its divisors is an integer number (18144528124736).

Almost surely, 2210223213133231 is an apocalyptic number.

210223213133231 is a deficient number, since it is larger than the sum of its proper divisors (7511124363601).

210223213133231 is a wasteful number, since it uses less digits than its factorization.

210223213133231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13869058 (or 13869029 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 210223213133231 its reverse (132331312322012), we get a palindrome (342554525455243).

The spelling of 210223213133231 in words is "two hundred ten trillion, two hundred twenty-three billion, two hundred thirteen million, one hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 29 841 18047 523363 13850953 15177527 401677637 11648651473 249968148791 7249076314939 210223213133231