2120340015 has 48 divisors (see below), whose sum is σ = 3806939136. Its totient is φ = 1090584000.

The previous prime is 2120339987. The next prime is 2120340029. The reversal of 2120340015 is 5100430212.

It is not a de Polignac number, because 2120340015 - 2⁵ = 2120339983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120340015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425790 + ... + 430740.

It is an arithmetic number, because the mean of its divisors is an integer number (79311232).

Almost surely, 2^2120340015 is an apocalyptic number.

2120340015 is a deficient number, since it is larger than the sum of its proper divisors (1686599121).

2120340015 is a wasteful number, since it uses less digits than its factorization.

2120340015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5300 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2120340015 is about 46047.1499118024. The cubic root of 2120340015 is about 1284.7003323482.

Adding to 2120340015 its reverse (5100430212), we get a palindrome (7220770227).

The spelling of 2120340015 in words is "two billion, one hundred twenty million, three hundred forty thousand, fifteen".