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23121331014 = 2331963120563
BaseRepresentation
bin10101100010001000…
…111000001101000110
32012200100212022110010
4111202020320031012
5334323030043024
614342150211050
71445653033215
oct254210701506
965610768403
1023121331014
119895430231
124593353a86
132246260b72
141194a7307c
15904cc9b29
hex562238346

23121331014 has 16 divisors (see below), whose sum is σ = 46244492352. Its totient is φ = 7706805288.

The previous prime is 23121331001. The next prime is 23121331061. The reversal of 23121331014 is 41013312132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131497 + ... + 252059.

It is an arithmetic number, because the mean of its divisors is an integer number (2890280772).

Almost surely, 223121331014 is an apocalyptic number.

23121331014 is an abundant number, since it is smaller than the sum of its proper divisors (23123161338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23121331014 is a wasteful number, since it uses less digits than its factorization.

23121331014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152531.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23121331014 its reverse (41013312132), we get a palindrome (64134643146).

The spelling of 23121331014 in words is "twenty-three billion, one hundred twenty-one million, three hundred thirty-one thousand, fourteen".

Divisors: 1 2 3 6 31963 63926 95889 120563 191778 241126 361689 723378 3853555169 7707110338 11560665507 23121331014