120021415321 has 8 divisors (see below), whose sum is σ = 122026594664. Its totient is φ = 118025994240.

The previous prime is 120021415289. The next prime is 120021415351. The reversal of 120021415321 is 123514120021.

It can be written as a sum of positive squares in 4 ways, for example, as 2121892096 + 117899523225 = 46064^2 + 343365^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 120021415321 - 2⁵ = 120021415289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120021415292 and 120021415301.

It is not an unprimeable number, because it can be changed into a prime (120021415351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414760 + ... + 2463961.

It is an arithmetic number, because the mean of its divisors is an integer number (15253324333).

Almost surely, 2^120021415321 is an apocalyptic number.

It is an amenable number.

120021415321 is a deficient number, since it is larger than the sum of its proper divisors (2005179343).

120021415321 is an equidigital number, since it uses as much as digits as its factorization.

120021415321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879131.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 120021415321 its reverse (123514120021), we get a palindrome (243535535342).

The spelling of 120021415321 in words is "one hundred twenty billion, twenty-one million, four hundred fifteen thousand, three hundred twenty-one".