113021310987 has 80 divisors (see below), whose sum is σ = 192697243200. Its totient is φ = 65399021568.

The previous prime is 113021310977. The next prime is 113021311043. The reversal of 113021310987 is 789013120311.

It is not a de Polignac number, because 113021310987 - 2¹⁸ = 113021048843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113021310917) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 25041243 + ... + 25045755.

It is an arithmetic number, because the mean of its divisors is an integer number (2408715540).

Almost surely, 2^113021310987 is an apocalyptic number.

113021310987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

113021310987 is a deficient number, since it is larger than the sum of its proper divisors (79675932213).

113021310987 is a wasteful number, since it uses less digits than its factorization.

113021310987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954 (or 5945 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 113021310987 in words is "one hundred thirteen billion, twenty-one million, three hundred ten thousand, nine hundred eighty-seven".