120315209999 has 4 divisors (see below), whose sum is σ = 120355956336. Its totient is φ = 120274463664.

The previous prime is 120315209983. The next prime is 120315210031. The reversal of 120315209999 is 999902513021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120315209999 - 2⁴ = 120315209983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120315209099) 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, 20368739 + ... + 20374644.

It is an arithmetic number, because the mean of its divisors is an integer number (30088989084).

Almost surely, 2^120315209999 is an apocalyptic number.

120315209999 is a deficient number, since it is larger than the sum of its proper divisors (40746337).

120315209999 is an equidigital number, since it uses as much as digits as its factorization.

120315209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40746336.

The product of its (nonzero) digits is 393660, while the sum is 50.

The spelling of 120315209999 in words is "one hundred twenty billion, three hundred fifteen million, two hundred nine thousand, nine hundred ninety-nine".