122123131 has 4 divisors (see below), whose sum is σ = 131517232. Its totient is φ = 112729032.

The previous prime is 122123119. The next prime is 122123137. The reversal of 122123131 is 131321221.

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

It is not a de Polignac number, because 122123131 - 2⁷ = 122123003 is a prime.

It is a super-2 number, since 2×122123131² = 29828118250486322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122123137) 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, 4697031 + ... + 4697056.

It is an arithmetic number, because the mean of its divisors is an integer number (32879308).

Almost surely, 2^122123131 is an apocalyptic number.

122123131 is a deficient number, since it is larger than the sum of its proper divisors (9394101).

122123131 is an equidigital number, since it uses as much as digits as its factorization.

122123131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394100.

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

The square root of 122123131 is about 11050.9334899817. The cubic root of 122123131 is about 496.1343654249.

Adding to 122123131 its reverse (131321221), we get a palindrome (253444352).

The spelling of 122123131 in words is "one hundred twenty-two million, one hundred twenty-three thousand, one hundred thirty-one".