31146028113529 has 32 divisors (see below), whose sum is σ = 35729977360896. Its totient is φ = 26595958502400.

The previous prime is 31146028113491. The next prime is 31146028113649. The reversal of 31146028113529 is 92531182064113.

It is not a de Polignac number, because 31146028113529 - 2²¹ = 31146026016377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31146028113929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4930506279 + ... + 4930512595.

It is an arithmetic number, because the mean of its divisors is an integer number (1116561792528).

Almost surely, 2^{31146028113529} is an apocalyptic number.

It is an amenable number.

31146028113529 is a deficient number, since it is larger than the sum of its proper divisors (4583949247367).

31146028113529 is a wasteful number, since it uses less digits than its factorization.

31146028113529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9225.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 31146028113529 in words is "thirty-one trillion, one hundred forty-six billion, twenty-eight million, one hundred thirteen thousand, five hundred twenty-nine".