21130603112 has 32 divisors (see below), whose sum is σ = 40230432000. Its totient is φ = 10402639104.

The previous prime is 21130603111. The next prime is 21130603121.

21130603112 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (21130603111) 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, 1277648 + ... + 1294080.

It is an arithmetic number, because the mean of its divisors is an integer number (1257201000).

Almost surely, 2^21130603112 is an apocalyptic number.

It is an amenable number.

21130603112 is a deficient number, since it is larger than the sum of its proper divisors (19099828888).

21130603112 is a wasteful number, since it uses less digits than its factorization.

21130603112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18905 (or 18901 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 21130603112 in words is "twenty-one billion, one hundred thirty million, six hundred three thousand, one hundred twelve".