30640125320 has 96 divisors (see below), whose sum is σ = 81902378880. Its totient is φ = 10281640320.

The previous prime is 30640125311. The next prime is 30640125337. The reversal of 30640125320 is 2352104603.

It is a self number, because there is not a number n which added to its sum of digits gives 30640125320.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74186 + ... + 258425.

It is an arithmetic number, because the mean of its divisors is an integer number (853149780).

Almost surely, 2^30640125320 is an apocalyptic number.

It is an amenable number.

30640125320 is an abundant number, since it is smaller than the sum of its proper divisors (51262253560).

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

30640125320 is a wasteful number, since it uses less digits than its factorization.

30640125320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332683 (or 332672 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 30640125320 its reverse (2352104603), we get a palindrome (32992229923).

The spelling of 30640125320 in words is "thirty billion, six hundred forty million, one hundred twenty-five thousand, three hundred twenty".