120021413015 has 16 divisors (see below), whose sum is σ = 171757352448. Its totient is φ = 78722118816.

The previous prime is 120021413009. The next prime is 120021413137. The reversal of 120021413015 is 510314120021.

It is a cyclic number.

It is not a de Polignac number, because 120021413015 - 2⁴ = 120021412999 is a prime.

It is a super-2 number, since 2×120021413015² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 74546657 + ... + 74548266.

It is an arithmetic number, because the mean of its divisors is an integer number (10734834528).

Almost surely, 2^120021413015 is an apocalyptic number.

120021413015 is a deficient number, since it is larger than the sum of its proper divisors (51735939433).

120021413015 is a wasteful number, since it uses less digits than its factorization.

120021413015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149094958.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 120021413015 its reverse (510314120021), we get a palindrome (630335533036).

The spelling of 120021413015 in words is "one hundred twenty billion, twenty-one million, four hundred thirteen thousand, fifteen".