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12031102122 = 2313613251623
BaseRepresentation
bin10110011010001110…
…00000110010101010
31011001110122022102220
423031013000302222
5144114430231442
65305500134510
7604066452324
oct131507006252
934043568386
1012031102122
115114275106
1223b9237436
131199734350
14821bd6614
154a6365eec
hex2cd1c0caa

12031102122 has 32 divisors (see below), whose sum is σ = 25955518848. Its totient is φ = 3695823936.

The previous prime is 12031102117. The next prime is 12031102129. The reversal of 12031102122 is 22120113021.

It is not an unprimeable number, because it can be changed into a prime (12031102129) 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, 77998 + ... + 173625.

It is an arithmetic number, because the mean of its divisors is an integer number (811109964).

Almost surely, 212031102122 is an apocalyptic number.

12031102122 is an abundant number, since it is smaller than the sum of its proper divisors (13924416726).

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

12031102122 is a wasteful number, since it uses less digits than its factorization.

12031102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252254.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12031102122 its reverse (22120113021), we get a palindrome (34151215143).

The spelling of 12031102122 in words is "twelve billion, thirty-one million, one hundred two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 613 1226 1839 3678 7969 15938 23907 47814 251623 503246 754869 1509738 3271099 6542198 9813297 19626594 154244899 308489798 462734697 925469394 2005183687 4010367374 6015551061 12031102122