7621231113 has 48 divisors (see below), whose sum is σ = 12130110720. Its totient is φ = 4768114896.

The previous prime is 7621231081. The next prime is 7621231127. The reversal of 7621231113 is 3111321267.

7621231113 is a `hidden beast` number, since 7 + 621 + 2 + 31 + 1 + 1 + 3 = 666.

It is not a de Polignac number, because 7621231113 - 2⁵ = 7621231081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7621231183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486306 + ... + 501732.

It is an arithmetic number, because the mean of its divisors is an integer number (252710640).

Almost surely, 2^7621231113 is an apocalyptic number.

It is an amenable number.

7621231113 is a deficient number, since it is larger than the sum of its proper divisors (4508879607).

7621231113 is a wasteful number, since it uses less digits than its factorization.

7621231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15568 (or 15556 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 7621231113 is about 87299.6627313073. The cubic root of 7621231113 is about 1967.9242492965.

The spelling of 7621231113 in words is "seven billion, six hundred twenty-one million, two hundred thirty-one thousand, one hundred thirteen".