113251263641 has 4 divisors (see below), whose sum is σ = 113252312592. Its totient is φ = 113250214692.

The previous prime is 113251263617. The next prime is 113251263659. The reversal of 113251263641 is 146362152311.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146362152311 = 4211 ⋅34757101.

It is a cyclic number.

It is not a de Polignac number, because 113251263641 - 2³⁴ = 96071394457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113251263661) 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, 341171 + ... + 585576.

It is an arithmetic number, because the mean of its divisors is an integer number (28313078148).

Almost surely, 2^113251263641 is an apocalyptic number.

It is an amenable number.

113251263641 is a deficient number, since it is larger than the sum of its proper divisors (1048951).

113251263641 is an equidigital number, since it uses as much as digits as its factorization.

113251263641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048950.

The product of its digits is 25920, while the sum is 35.

The spelling of 113251263641 in words is "one hundred thirteen billion, two hundred fifty-one million, two hundred sixty-three thousand, six hundred forty-one".