120756027731021 has 4 divisors (see below), whose sum is σ = 120805376334912. Its totient is φ = 120706679127132.

The previous prime is 120756027730993. The next prime is 120756027731041. The reversal of 120756027731021 is 120137720657021.

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 a de Polignac number, because none of the positive numbers 2^k-120756027731021 is a prime.

It is a super-2 number, since 2×120756027731021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120756027731041) 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, 24674298275 + ... + 24674303168.

It is an arithmetic number, because the mean of its divisors is an integer number (30201344083728).

Almost surely, 2^{120756027731021} is an apocalyptic number.

It is an amenable number.

120756027731021 is a deficient number, since it is larger than the sum of its proper divisors (49348603891).

120756027731021 is an equidigital number, since it uses as much as digits as its factorization.

120756027731021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49348603890.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 120756027731021 in words is "one hundred twenty trillion, seven hundred fifty-six billion, twenty-seven million, seven hundred thirty-one thousand, twenty-one".