113031232220 has 48 divisors (see below), whose sum is σ = 241451733600. Its totient is φ = 44435377920.

The previous prime is 113031232217. The next prime is 113031232247. The reversal of 113031232220 is 22232130311.

It is a super-2 number, since 2×113031232220² (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 = 113031232192 and 113031232201.

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, 1499186 + ... + 1572774.

It is an arithmetic number, because the mean of its divisors is an integer number (5030244450).

Almost surely, 2^113031232220 is an apocalyptic number.

113031232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113031232220 is an abundant number, since it is smaller than the sum of its proper divisors (128420501380).

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

113031232220 is a wasteful number, since it uses less digits than its factorization.

113031232220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74918 (or 74916 counting only the distinct ones).

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

Adding to 113031232220 its reverse (22232130311), we get a palindrome (135263362531).

The spelling of 113031232220 in words is "one hundred thirteen billion, thirty-one million, two hundred thirty-two thousand, two hundred twenty".