113003031132 has 36 divisors (see below), whose sum is σ = 285669840456. Its totient is φ = 37664605920.

The previous prime is 113003031101. The next prime is 113003031157. The reversal of 113003031132 is 231130300311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×113003031132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343507 + ... + 586517.

It is an arithmetic number, because the mean of its divisors is an integer number (7935273346).

Almost surely, 2^113003031132 is an apocalyptic number.

113003031132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113003031132 is an abundant number, since it is smaller than the sum of its proper divisors (172666809324).

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

113003031132 is a wasteful number, since it uses less digits than its factorization.

113003031132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255938 (or 255933 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 113003031132 its reverse (231130300311), we get a palindrome (344133331443).

The spelling of 113003031132 in words is "one hundred thirteen billion, three million, thirty-one thousand, one hundred thirty-two".