113653431543531 has 24 divisors (see below), whose sum is σ = 168215634598032. Its totient is φ = 68198878792000.

The previous prime is 113653431543529. The next prime is 113653431543551. The reversal of 113653431543531 is 135345134356311.

It is a happy number.

It is not a de Polignac number, because 113653431543531 - 2¹ = 113653431543529 is a prime.

It is a super-2 number, since 2×113653431543531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113653431543511) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1549937856 + ... + 1550011181.

It is an arithmetic number, because the mean of its divisors is an integer number (7008984774918).

Almost surely, 2^{113653431543531} is an apocalyptic number.

113653431543531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113653431543531 is a deficient number, since it is larger than the sum of its proper divisors (54562203054501).

113653431543531 is a wasteful number, since it uses less digits than its factorization.

113653431543531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099949163 (or 3099949152 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 48.

Adding to 113653431543531 its reverse (135345134356311), we get a palindrome (248998565899842).

The spelling of 113653431543531 in words is "one hundred thirteen trillion, six hundred fifty-three billion, four hundred thirty-one million, five hundred forty-three thousand, five hundred thirty-one".