113631603640 has 32 divisors (see below), whose sum is σ = 264487356000. Its totient is φ = 43885308544.

The previous prime is 113631603593. The next prime is 113631603653. The reversal of 113631603640 is 46306136311.

113631603640 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 2×113631603640² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113631603596 and 113631603605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48977980 + ... + 48980299.

It is an arithmetic number, because the mean of its divisors is an integer number (8265229875).

Almost surely, 2^113631603640 is an apocalyptic number.

113631603640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113631603640 is an abundant number, since it is smaller than the sum of its proper divisors (150855752360).

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

113631603640 is a wasteful number, since it uses less digits than its factorization.

113631603640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97958319 (or 97958315 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

Adding to 113631603640 its reverse (46306136311), we get a palindrome (159937739951).

The spelling of 113631603640 in words is "one hundred thirteen billion, six hundred thirty-one million, six hundred three thousand, six hundred forty".