113555122020 has 96 divisors (see below), whose sum is σ = 374063961600. Its totient is φ = 28500106752.

The previous prime is 113555122019. The next prime is 113555122067. The reversal of 113555122020 is 20221555311.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6175740 + ... + 6194099.

It is an arithmetic number, because the mean of its divisors is an integer number (3896499600).

Almost surely, 2^113555122020 is an apocalyptic number.

113555122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113555122020 is an abundant number, since it is smaller than the sum of its proper divisors (260508839580).

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

113555122020 is a wasteful number, since it uses less digits than its factorization.

113555122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12369874 (or 12369866 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 113555122020 its reverse (20221555311), we get a palindrome (133776677331).

The spelling of 113555122020 in words is "one hundred thirteen billion, five hundred fifty-five million, one hundred twenty-two thousand, twenty".