113878931543 has 16 divisors (see below), whose sum is σ = 129948235200. Its totient is φ = 98862905856.

The previous prime is 113878931533. The next prime is 113878931581. The reversal of 113878931543 is 345139878311.

It is a happy number.

It is not a de Polignac number, because 113878931543 - 2⁴ = 113878931527 is a prime.

It is a super-2 number, since 2×113878931543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113878931533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113633 + ... + 490581.

It is an arithmetic number, because the mean of its divisors is an integer number (8121764700).

Almost surely, 2^113878931543 is an apocalyptic number.

113878931543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113878931543 is a deficient number, since it is larger than the sum of its proper divisors (16069303657).

113878931543 is a wasteful number, since it uses less digits than its factorization.

113878931543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378346.

The product of its digits is 2177280, while the sum is 53.

The spelling of 113878931543 in words is "one hundred thirteen billion, eight hundred seventy-eight million, nine hundred thirty-one thousand, five hundred forty-three".