120122312131 has 4 divisors (see below), whose sum is σ = 123052124664. Its totient is φ = 117192499600.

The previous prime is 120122312113. The next prime is 120122312173. The reversal of 120122312131 is 131213221021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131213221021 = 13901 ⋅9439121.

It is a cyclic number.

It is not a de Polignac number, because 120122312131 - 2⁵ = 120122312099 is a prime.

It is a super-2 number, since 2×120122312131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120122312099 and 120122312108.

It is not an unprimeable number, because it can be changed into a prime (120122312231) 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, 1464906205 + ... + 1464906286.

It is an arithmetic number, because the mean of its divisors is an integer number (30763031166).

Almost surely, 2^120122312131 is an apocalyptic number.

120122312131 is a deficient number, since it is larger than the sum of its proper divisors (2929812533).

120122312131 is an equidigital number, since it uses as much as digits as its factorization.

120122312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929812532.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 120122312131 its reverse (131213221021), we get a palindrome (251335533152).

The spelling of 120122312131 in words is "one hundred twenty billion, one hundred twenty-two million, three hundred twelve thousand, one hundred thirty-one".