113021220321 has 16 divisors (see below), whose sum is σ = 167526448320. Its totient is φ = 75308058720.

The previous prime is 113021220281. The next prime is 113021220329. The reversal of 113021220321 is 123022120311.

113021220321 is a `hidden beast` number, since 1 + 130 + 212 + 2 + 0 + 321 = 666.

It is not a de Polignac number, because 113021220321 - 2¹⁴ = 113021203937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113021220294 and 113021220303.

It is not an unprimeable number, because it can be changed into a prime (113021220329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042435 + ... + 1145736.

It is an arithmetic number, because the mean of its divisors is an integer number (10470403020).

Almost surely, 2^113021220321 is an apocalyptic number.

It is an amenable number.

113021220321 is a deficient number, since it is larger than the sum of its proper divisors (54505227999).

113021220321 is a wasteful number, since it uses less digits than its factorization.

113021220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190093 (or 2190087 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113021220321 its reverse (123022120311), we get a palindrome (236043340632).

The spelling of 113021220321 in words is "one hundred thirteen billion, twenty-one million, two hundred twenty thousand, three hundred twenty-one".