113065365421 has 4 divisors (see below), whose sum is σ = 113072864832. Its totient is φ = 113057866012.

The previous prime is 113065365397. The next prime is 113065365449. The reversal of 113065365421 is 124563560311.

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 an emirpimes, since its reverse is a distinct semiprime: 124563560311 = 4241 ⋅29371271.

It is a cyclic number.

It is not a de Polignac number, because 113065365421 - 2⁷ = 113065365293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113065365451) 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, 3727045 + ... + 3757258.

It is an arithmetic number, because the mean of its divisors is an integer number (28268216208).

Almost surely, 2^113065365421 is an apocalyptic number.

It is an amenable number.

113065365421 is a deficient number, since it is larger than the sum of its proper divisors (7499411).

113065365421 is an equidigital number, since it uses as much as digits as its factorization.

113065365421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499410.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 113065365421 in words is "one hundred thirteen billion, sixty-five million, three hundred sixty-five thousand, four hundred twenty-one".