30112121100 has 36 divisors (see below), whose sum is σ = 87124404584. Its totient is φ = 8029898880.

The previous prime is 30112121099. The next prime is 30112121119. The reversal of 30112121100 is 112121103.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 50186569 + ... + 50187168.

Almost surely, 2^30112121100 is an apocalyptic number.

30112121100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30112121100 is an abundant number, since it is smaller than the sum of its proper divisors (57012283484).

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

30112121100 is a wasteful number, since it uses less digits than its factorization.

30112121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100373754 (or 100373747 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 30112121100 its reverse (112121103), we get a palindrome (30224242203).

The spelling of 30112121100 in words is "thirty billion, one hundred twelve million, one hundred twenty-one thousand, one hundred".