113103031520 has 48 divisors (see below), whose sum is σ = 269245701648. Its totient is φ = 44895851520.

The previous prime is 113103031511. The next prime is 113103031523. The reversal of 113103031520 is 25130301311.

113103031520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×113103031520² (a number of 23 digits) contains 22 as substring.

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 = 113103031492 and 113103031501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113103031523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2677109 + ... + 2719028.

It is an arithmetic number, because the mean of its divisors is an integer number (5609285451).

Almost surely, 2^113103031520 is an apocalyptic number.

113103031520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113103031520 is an abundant number, since it is smaller than the sum of its proper divisors (156142670128).

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

113103031520 is a wasteful number, since it uses less digits than its factorization.

113103031520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5396283 (or 5396275 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 113103031520 its reverse (25130301311), we get a palindrome (138233332831).

The spelling of 113103031520 in words is "one hundred thirteen billion, one hundred three million, thirty-one thousand, five hundred twenty".