113213311020 has 72 divisors (see below), whose sum is σ = 343466585280. Its totient is φ = 30185568000.

The previous prime is 113213311019. The next prime is 113213311051. The reversal of 113213311020 is 20113312311.

113213311020 is a `hidden beast` number, since 1 + 1 + 321 + 331 + 10 + 2 + 0 = 666.

It is a super-2 number, since 2×113213311020² (a number of 23 digits) contains 22 as substring.

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 = 113213310984 and 113213311002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1215261 + ... + 1305099.

It is an arithmetic number, because the mean of its divisors is an integer number (4770369240).

Almost surely, 2^113213311020 is an apocalyptic number.

113213311020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113213311020 is an abundant number, since it is smaller than the sum of its proper divisors (230253274260).

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

113213311020 is a wasteful number, since it uses less digits than its factorization.

113213311020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96855 (or 96850 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113213311020 its reverse (20113312311), we get a palindrome (133326623331).

The spelling of 113213311020 in words is "one hundred thirteen billion, two hundred thirteen million, three hundred eleven thousand, twenty".