30640111012 has 36 divisors (see below), whose sum is σ = 63126045360. Its totient is φ = 12973258704.

The previous prime is 30640110971. The next prime is 30640111027. The reversal of 30640111012 is 21011104603.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 925462 + ... + 957997.

It is an arithmetic number, because the mean of its divisors is an integer number (1753501260).

Almost surely, 2^30640111012 is an apocalyptic number.

It is an amenable number.

30640111012 is an abundant number, since it is smaller than the sum of its proper divisors (32485934348).

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

30640111012 is a wasteful number, since it uses less digits than its factorization.

30640111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883560 (or 1883551 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 30640111012 its reverse (21011104603), we get a palindrome (51651215615).

The spelling of 30640111012 in words is "thirty billion, six hundred forty million, one hundred eleven thousand, twelve".