116120121021505 has 8 divisors (see below), whose sum is σ = 139922336701224. Its totient is φ = 92510635833600.

The previous prime is 116120121021449. The next prime is 116120121021521. The reversal of 116120121021505 is 505120121021611.

It can be written as a sum of positive squares in 4 ways, for example, as 4955129424144 + 111164991597361 = 2226012^2 + 10543481^2 .

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

It is not a de Polignac number, because 116120121021505 - 2⁹ = 116120121020993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48182621626 + ... + 48182624035.

It is an arithmetic number, because the mean of its divisors is an integer number (17490292087653).

Almost surely, 2^{116120121021505} is an apocalyptic number.

It is an amenable number.

116120121021505 is a deficient number, since it is larger than the sum of its proper divisors (23802215679719).

116120121021505 is an equidigital number, since it uses as much as digits as its factorization.

116120121021505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96365245907.

The product of its (nonzero) digits is 1200, while the sum is 28.

The spelling of 116120121021505 in words is "one hundred sixteen trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, five hundred five".