10113513021 has 24 divisors (see below), whose sum is σ = 15381419040. Its totient is φ = 6385759200.

The previous prime is 10113513013. The next prime is 10113513029. The reversal of 10113513021 is 12031531101.

10113513021 is a `hidden beast` number, since 1 + 0 + 11 + 351 + 302 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (10113513013) and next prime (10113513029).

It is not a de Polignac number, because 10113513021 - 2³ = 10113513013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10113512985 and 10113513003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113513029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 997186 + ... + 1007276.

It is an arithmetic number, because the mean of its divisors is an integer number (640892460).

Almost surely, 2^10113513021 is an apocalyptic number.

It is an amenable number.

10113513021 is a deficient number, since it is larger than the sum of its proper divisors (5267906019).

10113513021 is a wasteful number, since it uses less digits than its factorization.

10113513021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977 (or 15974 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The spelling of 10113513021 in words is "ten billion, one hundred thirteen million, five hundred thirteen thousand, twenty-one".