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320102002112231 = 3971907454792987
BaseRepresentation
bin100100011001000011000111…
…0001000001011011011100111
31112222101110012220101021102102
41020302012032020023123213
5313424022400020042411
63052444455113402315
7124265415006250253
oct11062061610133347
91488343186337372
10320102002112231
1192aa3551172169
122ba99ab4a0939b
131097c648c31b81
14590903b99d263
1527018c35acd3b
hex123218e20b6e7

320102002112231 has 16 divisors (see below), whose sum is σ = 321150650034816. Its totient is φ = 319054650764256.

The previous prime is 320102002112213. The next prime is 320102002112237. The reversal of 320102002112231 is 132211200201023.

It is a cyclic number.

It is not a de Polignac number, because 320102002112231 - 238 = 319827124205287 is a prime.

It is a super-2 number, since 2×3201020021122312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320102002112237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3442391720 + ... + 3442484706.

It is an arithmetic number, because the mean of its divisors is an integer number (20071915627176).

Almost surely, 2320102002112231 is an apocalyptic number.

320102002112231 is a deficient number, since it is larger than the sum of its proper divisors (1048647922585).

320102002112231 is a wasteful number, since it uses less digits than its factorization.

320102002112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99838.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 320102002112231 its reverse (132211200201023), we get a palindrome (452313202313254).

The spelling of 320102002112231 in words is "three hundred twenty trillion, one hundred two billion, two million, one hundred twelve thousand, two hundred thirty-one".

Divisors: 1 397 1907 4547 92987 757079 1805159 8671129 36915839 177326209 422811889 3442438213 70398504973 167856319933 806302272323 320102002112231