12265602531 has 48 divisors (see below), whose sum is σ = 20550555648. Its totient is φ = 6449889600.

The previous prime is 12265602529. The next prime is 12265602563. The reversal of 12265602531 is 13520656221.

It is not a de Polignac number, because 12265602531 - 2¹ = 12265602529 is a prime.

It is a super-2 number, since 2×12265602531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12265602492 and 12265602501.

It is not an unprimeable number, because it can be changed into a prime (12265602521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 622846 + ... + 642236.

It is an arithmetic number, because the mean of its divisors is an integer number (428136576).

Almost surely, 2^12265602531 is an apocalyptic number.

12265602531 is a deficient number, since it is larger than the sum of its proper divisors (8284953117).

12265602531 is a wasteful number, since it uses less digits than its factorization.

12265602531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19752 (or 19745 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 12265602531 in words is "twelve billion, two hundred sixty-five million, six hundred two thousand, five hundred thirty-one".