113119987 has 2 divisors, whose sum is σ = 113119988. Its totient is φ = 113119986.

The previous prime is 113119973. The next prime is 113120011. The reversal of 113119987 is 789911311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113119987 is a prime.

It is a super-2 number, since 2×113119987² = 25592262917760338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113119907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56559993 + 56559994.

It is an arithmetic number, because the mean of its divisors is an integer number (56559994).

Almost surely, 2^113119987 is an apocalyptic number.

113119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

113119987 is an equidigital number, since it uses as much as digits as its factorization.

113119987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 40.

The square root of 113119987 is about 10635.7880291025. The cubic root of 113119987 is about 483.6298695041.

The spelling of 113119987 in words is "one hundred thirteen million, one hundred nineteen thousand, nine hundred eighty-seven".