120312132121 has 4 divisors (see below), whose sum is σ = 121259471872. Its totient is φ = 119364792372.

The previous prime is 120312132113. The next prime is 120312132173. The reversal of 120312132121 is 121231213021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120312132121 - 2³ = 120312132113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120312132181) 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, 473669685 + ... + 473669938.

It is an arithmetic number, because the mean of its divisors is an integer number (30314867968).

Almost surely, 2^120312132121 is an apocalyptic number.

It is an amenable number.

120312132121 is a deficient number, since it is larger than the sum of its proper divisors (947339751).

120312132121 is an equidigital number, since it uses as much as digits as its factorization.

120312132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947339750.

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

Adding to 120312132121 its reverse (121231213021), we get a palindrome (241543345142).

The spelling of 120312132121 in words is "one hundred twenty billion, three hundred twelve million, one hundred thirty-two thousand, one hundred twenty-one".