12135255520031 has 12 divisors (see below), whose sum is σ = 14859496556280. Its totient is φ = 9854192451600.

The previous prime is 12135255519977. The next prime is 12135255520043. The reversal of 12135255520031 is 13002555253121.

It is a happy number.

12135255520031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12135255520031 - 2⁶ = 12135255519967 is a prime.

It is a super-2 number, since 2×12135255520031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12135255519973 and 12135255520000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12135255520231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6517322120 + ... + 6517323981.

It is an arithmetic number, because the mean of its divisors is an integer number (1238291379690).

Almost surely, 2^{12135255520031} is an apocalyptic number.

12135255520031 is a deficient number, since it is larger than the sum of its proper divisors (2724241036249).

12135255520031 is a wasteful number, since it uses less digits than its factorization.

12135255520031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13034646134 (or 13034646127 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 12135255520031 in words is "twelve trillion, one hundred thirty-five billion, two hundred fifty-five million, five hundred twenty thousand, thirty-one".