113443531320 has 64 divisors (see below), whose sum is σ = 388949253120. Its totient is φ = 25929949824.

The previous prime is 113443531259. The next prime is 113443531339. The reversal of 113443531320 is 23135344311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 67525072 + ... + 67526751.

It is an arithmetic number, because the mean of its divisors is an integer number (6077332080).

Almost surely, 2^113443531320 is an apocalyptic number.

113443531320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113443531320 is an abundant number, since it is smaller than the sum of its proper divisors (275505721800).

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

113443531320 is a wasteful number, since it uses less digits than its factorization.

113443531320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135051844 (or 135051840 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 113443531320 its reverse (23135344311), we get a palindrome (136578875631).

The spelling of 113443531320 in words is "one hundred thirteen billion, four hundred forty-three million, five hundred thirty-one thousand, three hundred twenty".