120913309121 has 8 divisors (see below), whose sum is σ = 131920046688. Its totient is φ = 109909008000.

The previous prime is 120913309109. The next prime is 120913309129. The reversal of 120913309121 is 121903319021.

It is a happy number.

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

It is not a de Polignac number, because 120913309121 - 2²² = 120909114817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120913309129) 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, 504560 + ... + 704561.

It is an arithmetic number, because the mean of its divisors is an integer number (16490005836).

Almost surely, 2^120913309121 is an apocalyptic number.

120913309121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120913309121 is a deficient number, since it is larger than the sum of its proper divisors (11006737567).

120913309121 is a wasteful number, since it uses less digits than its factorization.

120913309121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218223.

The product of its (nonzero) digits is 2916, while the sum is 32.

It can be divided in two parts, 120913 and 309121, that added together give a palindrome (430034).

The spelling of 120913309121 in words is "one hundred twenty billion, nine hundred thirteen million, three hundred nine thousand, one hundred twenty-one".