120312011332021 has 4 divisors (see below), whose sum is σ = 123246450632844. Its totient is φ = 117377572031200.

The previous prime is 120312011332013. The next prime is 120312011332031. The reversal of 120312011332021 is 120233110213021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14866530449796 + 105445480882225 = 3855714^2 + 10268665^2 .

It is a cyclic number.

It is not a de Polignac number, because 120312011332021 - 2³ = 120312011332013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120312011331983 and 120312011332001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312011332031) 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, 1467219650350 + ... + 1467219650431.

It is an arithmetic number, because the mean of its divisors is an integer number (30811612658211).

Almost surely, 2^{120312011332021} is an apocalyptic number.

It is an amenable number.

120312011332021 is a deficient number, since it is larger than the sum of its proper divisors (2934439300823).

120312011332021 is an equidigital number, since it uses as much as digits as its factorization.

120312011332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934439300822.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 120312011332021 its reverse (120233110213021), we get a palindrome (240545121545042).

The spelling of 120312011332021 in words is "one hundred twenty trillion, three hundred twelve billion, eleven million, three hundred thirty-two thousand, twenty-one".