113120639 has 2 divisors, whose sum is σ = 113120640. Its totient is φ = 113120638.

The previous prime is 113120633. The next prime is 113120663. The reversal of 113120639 is 936021311.

It is a weak prime.

It is an emirp because it is prime and its reverse (936021311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113120639 - 2⁸ = 113120383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113120633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56560319 + 56560320.

It is an arithmetic number, because the mean of its divisors is an integer number (56560320).

Almost surely, 2^113120639 is an apocalyptic number.

113120639 is a deficient number, since it is larger than the sum of its proper divisors (1).

113120639 is an equidigital number, since it uses as much as digits as its factorization.

113120639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 113120639 is about 10635.8186802897. The cubic root of 113120639 is about 483.6307986829.

The spelling of 113120639 in words is "one hundred thirteen million, one hundred twenty thousand, six hundred thirty-nine".