113431001539 has 4 divisors (see below), whose sum is σ = 113905608480. Its totient is φ = 112956394600.

The previous prime is 113431001527. The next prime is 113431001543. The reversal of 113431001539 is 935100134311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113431001539 - 2⁵ = 113431001507 is a prime.

It is a super-2 number, since 2×113431001539² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113431001539.

It is not an unprimeable number, because it can be changed into a prime (113431002539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237303112 + ... + 237303589.

It is an arithmetic number, because the mean of its divisors is an integer number (28476402120).

Almost surely, 2^113431001539 is an apocalyptic number.

113431001539 is a deficient number, since it is larger than the sum of its proper divisors (474606941).

113431001539 is an equidigital number, since it uses as much as digits as its factorization.

113431001539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474606940.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 113431001539 in words is "one hundred thirteen billion, four hundred thirty-one million, one thousand, five hundred thirty-nine".