31145125525304 has 16 divisors (see below), whose sum is σ = 66739554697200. Its totient is φ = 13347910939392.

The previous prime is 31145125525301. The next prime is 31145125525337. The reversal of 31145125525304 is 40352552154113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31145125525301) 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, 278081477849 + ... + 278081477960.

It is an arithmetic number, because the mean of its divisors is an integer number (4171222168575).

Almost surely, 2^{31145125525304} is an apocalyptic number.

It is an amenable number.

31145125525304 is an abundant number, since it is smaller than the sum of its proper divisors (35594429171896).

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

31145125525304 is a wasteful number, since it uses less digits than its factorization.

31145125525304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556162955822 (or 556162955818 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

Adding to 31145125525304 its reverse (40352552154113), we get a palindrome (71497677679417).

The spelling of 31145125525304 in words is "thirty-one trillion, one hundred forty-five billion, one hundred twenty-five million, five hundred twenty-five thousand, three hundred four".