30331125025320 has 128 divisors (see below), whose sum is σ = 104086203206400. Its totient is φ = 6926576941056.

The previous prime is 30331125025259. The next prime is 30331125025321. The reversal of 30331125025320 is 2352052113303.

It is a happy number.

It is a super-2 number, since 2×30331125025320² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30331125025321) 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, 15348189 + ... + 17211308.

It is an arithmetic number, because the mean of its divisors is an integer number (813173462550).

Almost surely, 2^{30331125025320} is an apocalyptic number.

30331125025320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30331125025320 is an abundant number, since it is smaller than the sum of its proper divisors (73755078181080).

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

30331125025320 is a wasteful number, since it uses less digits than its factorization.

30331125025320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32560627 (or 32560623 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 30331125025320 its reverse (2352052113303), we get a palindrome (32683177138623).

The spelling of 30331125025320 in words is "thirty trillion, three hundred thirty-one billion, one hundred twenty-five million, twenty-five thousand, three hundred twenty".