113031020320 has 24 divisors (see below), whose sum is σ = 267035785884. Its totient is φ = 45212408064.

The previous prime is 113031020309. The next prime is 113031020321. The reversal of 113031020320 is 23020130311.

It can be written as a sum of positive squares in 2 ways, for example, as 108971291664 + 4059728656 = 330108^2 + 63716^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 113031020294 and 113031020303.

It is not an unprimeable number, because it can be changed into a prime (113031020321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353221779 + ... + 353222098.

Almost surely, 2^113031020320 is an apocalyptic number.

113031020320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113031020320 is an abundant number, since it is smaller than the sum of its proper divisors (154004765564).

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

113031020320 is an equidigital number, since it uses as much as digits as its factorization.

113031020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706443892 (or 706443884 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 113031020320 its reverse (23020130311), we get a palindrome (136051150631).

The spelling of 113031020320 in words is "one hundred thirteen billion, thirty-one million, twenty thousand, three hundred twenty".