113202253021 has 32 divisors (see below), whose sum is σ = 134153220096. Its totient is φ = 94167360000.

The previous prime is 113202253007. The next prime is 113202253039. The reversal of 113202253021 is 120352202311.

It is a cyclic number.

It is not a de Polignac number, because 113202253021 - 2⁷ = 113202252893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113202252983 and 113202253001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113202253081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32706231 + ... + 32709691.

It is an arithmetic number, because the mean of its divisors is an integer number (4192288128).

Almost surely, 2^113202253021 is an apocalyptic number.

113202253021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113202253021 is a deficient number, since it is larger than the sum of its proper divisors (20950967075).

113202253021 is a wasteful number, since it uses less digits than its factorization.

113202253021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 113202253021 its reverse (120352202311), we get a palindrome (233554455332).

The spelling of 113202253021 in words is "one hundred thirteen billion, two hundred two million, two hundred fifty-three thousand, twenty-one".