120021001112321 has 4 divisors (see below), whose sum is σ = 120234182287152. Its totient is φ = 119807819937492.

The previous prime is 120021001112317. The next prime is 120021001112329. The reversal of 120021001112321 is 123211100120021.

It is a happy number.

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 120021001112321 - 2² = 120021001112317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120021001112321.

It is not an unprimeable number, because it can be changed into a prime (120021001112329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106590586571 + ... + 106590587696.

It is an arithmetic number, because the mean of its divisors is an integer number (30058545571788).

Almost surely, 2^{120021001112321} is an apocalyptic number.

It is an amenable number.

120021001112321 is a deficient number, since it is larger than the sum of its proper divisors (213181174831).

120021001112321 is an equidigital number, since it uses as much as digits as its factorization.

120021001112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213181174830.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120021001112321 its reverse (123211100120021), we get a palindrome (243232101232342).

The spelling of 120021001112321 in words is "one hundred twenty trillion, twenty-one billion, one million, one hundred twelve thousand, three hundred twenty-one".