120131013121 has 12 divisors (see below), whose sum is σ = 145820077632. Its totient is φ = 98492506728.

The previous prime is 120131013097. The next prime is 120131013139. The reversal of 120131013121 is 121310131021.

It is a happy number.

It is not a de Polignac number, because 120131013121 - 2⁵ = 120131013089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120131013095 and 120131013104.

It is not an unprimeable number, because it can be changed into a prime (120131013521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53295685 + ... + 53297938.

It is an arithmetic number, because the mean of its divisors is an integer number (12151673136).

Almost surely, 2^120131013121 is an apocalyptic number.

It is an amenable number.

120131013121 is a deficient number, since it is larger than the sum of its proper divisors (25689064511).

120131013121 is a wasteful number, since it uses less digits than its factorization.

120131013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106593660 (or 106593653 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 120131013121 its reverse (121310131021), we get a palindrome (241441144142).

The spelling of 120131013121 in words is "one hundred twenty billion, one hundred thirty-one million, thirteen thousand, one hundred twenty-one".