30511100812 has 24 divisors (see below), whose sum is σ = 57850054416. Its totient is φ = 14024252928.

The previous prime is 30511100801. The next prime is 30511100813. The reversal of 30511100812 is 21800111503.

It is not an unprimeable number, because it can be changed into a prime (30511100813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5214433 + ... + 5220280.

It is an arithmetic number, because the mean of its divisors is an integer number (2410418934).

Almost surely, 2^30511100812 is an apocalyptic number.

It is an amenable number.

30511100812 is a deficient number, since it is larger than the sum of its proper divisors (27338953604).

30511100812 is a wasteful number, since it uses less digits than its factorization.

30511100812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10434777 (or 10434775 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The spelling of 30511100812 in words is "thirty billion, five hundred eleven million, one hundred thousand, eight hundred twelve".