30012111988 has 12 divisors (see below), whose sum is σ = 52523572192. Its totient is φ = 15005377080.

The previous prime is 30012111973. The next prime is 30012111991. The reversal of 30012111988 is 88911121003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62778 + ... + 252913.

Almost surely, 2^30012111988 is an apocalyptic number.

It is an amenable number.

30012111988 is a deficient number, since it is larger than the sum of its proper divisors (22511460204).

30012111988 is a wasteful number, since it uses less digits than its factorization.

30012111988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339462 (or 339460 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 30012111988 in words is "thirty billion, twelve million, one hundred eleven thousand, nine hundred eighty-eight".