113252758561 has 4 divisors (see below), whose sum is σ = 114617249712. Its totient is φ = 111888267412.

The previous prime is 113252758559. The next prime is 113252758589. The reversal of 113252758561 is 165857252311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113252758561 - 2¹ = 113252758559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113250758561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682245451 + ... + 682245616.

It is an arithmetic number, because the mean of its divisors is an integer number (28654312428).

Almost surely, 2^113252758561 is an apocalyptic number.

It is an amenable number.

113252758561 is a deficient number, since it is larger than the sum of its proper divisors (1364491151).

113252758561 is an equidigital number, since it uses as much as digits as its factorization.

113252758561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364491150.

The product of its digits is 504000, while the sum is 46.

The spelling of 113252758561 in words is "one hundred thirteen billion, two hundred fifty-two million, seven hundred fifty-eight thousand, five hundred sixty-one".