113323251621 has 16 divisors (see below), whose sum is σ = 151626902336. Its totient is φ = 75284366976.

The previous prime is 113323251607. The next prime is 113323251751. The reversal of 113323251621 is 126152323311.

It is not a de Polignac number, because 113323251621 - 2⁹ = 113323251109 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 (113323252621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3375906 + ... + 3409308.

It is an arithmetic number, because the mean of its divisors is an integer number (9476681396).

Almost surely, 2^113323251621 is an apocalyptic number.

It is an amenable number.

113323251621 is a deficient number, since it is larger than the sum of its proper divisors (38303650715).

113323251621 is a wasteful number, since it uses less digits than its factorization.

113323251621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37332.

The product of its digits is 6480, while the sum is 30.

Adding to 113323251621 its reverse (126152323311), we get a palindrome (239475574932).

The spelling of 113323251621 in words is "one hundred thirteen billion, three hundred twenty-three million, two hundred fifty-one thousand, six hundred twenty-one".