122321131 has 4 divisors (see below), whose sum is σ = 122901064. Its totient is φ = 121741200.

The previous prime is 122321123. The next prime is 122321179. The reversal of 122321131 is 131123221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122321131 - 2³ = 122321123 is a prime.

It is a super-2 number, since 2×122321131² = 29924918178238322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122324131) 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, 289650 + ... + 290071.

It is an arithmetic number, because the mean of its divisors is an integer number (30725266).

Almost surely, 2^122321131 is an apocalyptic number.

122321131 is a deficient number, since it is larger than the sum of its proper divisors (579933).

122321131 is an equidigital number, since it uses as much as digits as its factorization.

122321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579932.

The product of its digits is 72, while the sum is 16.

The square root of 122321131 is about 11059.8883809919. Note that the first 3 decimals coincide. The cubic root of 122321131 is about 496.4023505903.

Adding to 122321131 its reverse (131123221), we get a palindrome (253444352).

The spelling of 122321131 in words is "one hundred twenty-two million, three hundred twenty-one thousand, one hundred thirty-one".