113243013020 has 48 divisors (see below), whose sum is σ = 258401740800. Its totient is φ = 41528842560.

The previous prime is 113243012999. The next prime is 113243013031. The reversal of 113243013020 is 20310342311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 113243012983 and 113243013001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4794800 + ... + 4818359.

It is an arithmetic number, because the mean of its divisors is an integer number (5383369600).

Almost surely, 2^113243013020 is an apocalyptic number.

113243013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113243013020 is an abundant number, since it is smaller than the sum of its proper divisors (145158727780).

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

113243013020 is a wasteful number, since it uses less digits than its factorization.

113243013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9613218 (or 9613216 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 113243013020 its reverse (20310342311), we get a palindrome (133553355331).

The spelling of 113243013020 in words is "one hundred thirteen billion, two hundred forty-three million, thirteen thousand, twenty".