113042113531 has 2 divisors, whose sum is σ = 113042113532. Its totient is φ = 113042113530.

The previous prime is 113042113517. The next prime is 113042113601. The reversal of 113042113531 is 135311240311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113042113531 is a prime.

It is a super-3 number, since 3×113042113531³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 113042113496 and 113042113505.

It is not a weakly prime, because it can be changed into another prime (113042113931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56521056765 + 56521056766.

It is an arithmetic number, because the mean of its divisors is an integer number (56521056766).

Almost surely, 2^113042113531 is an apocalyptic number.

113042113531 is a deficient number, since it is larger than the sum of its proper divisors (1).

113042113531 is an equidigital number, since it uses as much as digits as its factorization.

113042113531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 113042113531 its reverse (135311240311), we get a palindrome (248353353842).

The spelling of 113042113531 in words is "one hundred thirteen billion, forty-two million, one hundred thirteen thousand, five hundred thirty-one".