113121320022 has 24 divisors (see below), whose sum is σ = 245102719680. Its totient is φ = 37706102640.

The previous prime is 113121320021. The next prime is 113121320027. The reversal of 113121320022 is 220023121311.

113121320022 is a `hidden beast` number, since 11 + 312 + 1 + 320 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113121319977 and 113121320004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113121320021) 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 11 ways as a sum of consecutive naturals, for example, 969147 + ... + 1079577.

It is an arithmetic number, because the mean of its divisors is an integer number (10212613320).

Almost surely, 2^113121320022 is an apocalyptic number.

113121320022 is an abundant number, since it is smaller than the sum of its proper divisors (131981399658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113121320022 is a wasteful number, since it uses less digits than its factorization.

113121320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167348 (or 167345 counting only the distinct ones).

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

Adding to 113121320022 its reverse (220023121311), we get a palindrome (333144441333).

The spelling of 113121320022 in words is "one hundred thirteen billion, one hundred twenty-one million, three hundred twenty thousand, twenty-two".