31145125525230 has 16 divisors (see below), whose sum is σ = 74748301260624. Its totient is φ = 8305366806720.

The previous prime is 31145125525159. The next prime is 31145125525231. The reversal of 31145125525230 is 3252552154113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31145125525231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519085425391 + ... + 519085425450.

It is an arithmetic number, because the mean of its divisors is an integer number (4671768828789).

Almost surely, 2^{31145125525230} is an apocalyptic number.

31145125525230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31145125525230 is an abundant number, since it is smaller than the sum of its proper divisors (43603175735394).

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

31145125525230 is a wasteful number, since it uses less digits than its factorization.

31145125525230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038170850851.

The product of its (nonzero) digits is 180000, while the sum is 39.

Adding to 31145125525230 its reverse (3252552154113), we get a palindrome (34397677679343).

The spelling of 31145125525230 in words is "thirty-one trillion, one hundred forty-five billion, one hundred twenty-five million, five hundred twenty-five thousand, two hundred thirty".