113203020321 has 12 divisors (see below), whose sum is σ = 163629123840. Its totient is φ = 75416226360.

The previous prime is 113203020311. The next prime is 113203020341. The reversal of 113203020321 is 123020302311.

113203020321 is a `hidden beast` number, since 1 + 1 + 320 + 3 + 0 + 20 + 321 = 666.

It is not a de Polignac number, because 113203020321 - 2⁵ = 113203020289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113203020294 and 113203020303.

It is not an unprimeable number, because it can be changed into a prime (113203020311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4357485 + ... + 4383386.

It is an arithmetic number, because the mean of its divisors is an integer number (13635760320).

Almost surely, 2^113203020321 is an apocalyptic number.

It is an amenable number.

113203020321 is a deficient number, since it is larger than the sum of its proper divisors (50426103519).

113203020321 is a wasteful number, since it uses less digits than its factorization.

113203020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742316 (or 8742313 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 113203020321 its reverse (123020302311), we get a palindrome (236223322632).

The spelling of 113203020321 in words is "one hundred thirteen billion, two hundred three million, twenty thousand, three hundred twenty-one".