321425113 has 4 divisors (see below), whose sum is σ = 321649920. Its totient is φ = 321200308.

The previous prime is 321425107. The next prime is 321425149. The reversal of 321425113 is 311524123.

It is a happy number.

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: 311524123 = 2221 ⋅140263.

It is a cyclic number.

It is not a de Polignac number, because 321425113 - 2¹⁷ = 321294041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321425173) 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, 110245 + ... + 113122.

It is an arithmetic number, because the mean of its divisors is an integer number (80412480).

Almost surely, 2^321425113 is an apocalyptic number.

It is an amenable number.

321425113 is a deficient number, since it is larger than the sum of its proper divisors (224807).

321425113 is a wasteful number, since it uses less digits than its factorization.

321425113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224806.

The product of its digits is 720, while the sum is 22.

The square root of 321425113 is about 17928.3326887918. The cubic root of 321425113 is about 685.0042537964.

Adding to 321425113 its reverse (311524123), we get a palindrome (632949236).

The spelling of 321425113 in words is "three hundred twenty-one million, four hundred twenty-five thousand, one hundred thirteen".