113012102012020 has 48 divisors (see below), whose sum is σ = 243807082213968. Its totient is φ = 43970913745920.

The previous prime is 113012102011943. The next prime is 113012102012021. The reversal of 113012102012020 is 20210201210311.

It can be written as a sum of positive squares in 8 ways, for example, as 2424037252624 + 110588064759396 = 1556932^2 + 10516086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 113012102011985 and 113012102012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113012102012021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18461041 + ... + 23808280.

It is an arithmetic number, because the mean of its divisors is an integer number (5079314212791).

Almost surely, 2^{113012102012020} is an apocalyptic number.

113012102012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113012102012020 is an abundant number, since it is smaller than the sum of its proper divisors (130794980201948).

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

113012102012020 is a wasteful number, since it uses less digits than its factorization.

113012102012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42272980 (or 42272978 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 113012102012020 its reverse (20210201210311), we get a palindrome (133222303222331).

The spelling of 113012102012020 in words is "one hundred thirteen trillion, twelve billion, one hundred two million, twelve thousand, twenty".