120131121 has 16 divisors (see below), whose sum is σ = 178801920. Its totient is φ = 71112720.

The previous prime is 120131111. The next prime is 120131159. The reversal of 120131121 is 121131021.

It is not a de Polignac number, because 120131121 - 2⁶ = 120131057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120131097 and 120131106.

It is not an unprimeable number, because it can be changed into a prime (120131111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40911 + ... + 43748.

It is an arithmetic number, because the mean of its divisors is an integer number (11175120).

Almost surely, 2^120131121 is an apocalyptic number.

120131121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120131121 is a deficient number, since it is larger than the sum of its proper divisors (58670799).

120131121 is a wasteful number, since it uses less digits than its factorization.

120131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84716.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 120131121 is about 10960.4343435833. The cubic root of 120131121 is about 493.4220006909.

Adding to 120131121 its reverse (121131021), we get a palindrome (241262142).

The spelling of 120131121 in words is "one hundred twenty million, one hundred thirty-one thousand, one hundred twenty-one".