113003021987 has 16 divisors (see below), whose sum is σ = 124142257920. Its totient is φ = 102384453600.

The previous prime is 113003021869. The next prime is 113003022037. The reversal of 113003021987 is 789120300311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113003021987 - 2⁸ = 113003021731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113003027987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3313412 + ... + 3347342.

It is an arithmetic number, because the mean of its divisors is an integer number (7758891120).

Almost surely, 2^113003021987 is an apocalyptic number.

113003021987 is a deficient number, since it is larger than the sum of its proper divisors (11139235933).

113003021987 is a wasteful number, since it uses less digits than its factorization.

113003021987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41594.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 113003021987 in words is "one hundred thirteen billion, three million, twenty-one thousand, nine hundred eighty-seven".