113531320144 has 40 divisors (see below), whose sum is σ = 239993826912. Its totient is φ = 51598715520.

The previous prime is 113531320139. The next prime is 113531320171. The reversal of 113531320144 is 441023135311.

It is a super-3 number, since 3×113531320144³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555902 + ... + 1627234.

Almost surely, 2^113531320144 is an apocalyptic number.

It is an amenable number.

113531320144 is an abundant number, since it is smaller than the sum of its proper divisors (126462506768).

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

113531320144 is a wasteful number, since it uses less digits than its factorization.

113531320144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80395 (or 80389 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 113531320144 its reverse (441023135311), we get a palindrome (554554455455).

The spelling of 113531320144 in words is "one hundred thirteen billion, five hundred thirty-one million, three hundred twenty thousand, one hundred forty-four".