120012131121 has 8 divisors (see below), whose sum is σ = 165533974080. Its totient is φ = 77249187792.

The previous prime is 120012131117. The next prime is 120012131123. The reversal of 120012131121 is 121131210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120012131121 - 2² = 120012131117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120012131121.

It is not an unprimeable number, because it can be changed into a prime (120012131123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689724805 + ... + 689724978.

It is an arithmetic number, because the mean of its divisors is an integer number (20691746760).

Almost surely, 2^120012131121 is an apocalyptic number.

It is an amenable number.

120012131121 is a deficient number, since it is larger than the sum of its proper divisors (45521842959).

120012131121 is a wasteful number, since it uses less digits than its factorization.

120012131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379449815.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 120012131121 its reverse (121131210021), we get a palindrome (241143341142).

The spelling of 120012131121 in words is "one hundred twenty billion, twelve million, one hundred thirty-one thousand, one hundred twenty-one".