12101560631 has 4 divisors (see below), whose sum is σ = 12168420264. Its totient is φ = 12034701000.

The previous prime is 12101560591. The next prime is 12101560643. The reversal of 12101560631 is 13606510121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13606510121 = 1031 ⋅13197391.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101560631 is a prime.

It is a super-2 number, since 2×12101560631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101560631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101560651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33429545 + ... + 33429906.

It is an arithmetic number, because the mean of its divisors is an integer number (3042105066).

Almost surely, 2^12101560631 is an apocalyptic number.

12101560631 is a deficient number, since it is larger than the sum of its proper divisors (66859633).

12101560631 is an equidigital number, since it uses as much as digits as its factorization.

12101560631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66859632.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 12101560631 in words is "twelve billion, one hundred one million, five hundred sixty thousand, six hundred thirty-one".