2120365839 has 4 divisors (see below), whose sum is σ = 2827154456. Its totient is φ = 1413577224.

The previous prime is 2120365813. The next prime is 2120365853. The reversal of 2120365839 is 9385630212.

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

It is not a de Polignac number, because 2120365839 - 2¹³ = 2120357647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120365797 and 2120365806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120365889) 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, 353394304 + ... + 353394309.

It is an arithmetic number, because the mean of its divisors is an integer number (706788614).

Almost surely, 2^2120365839 is an apocalyptic number.

2120365839 is a deficient number, since it is larger than the sum of its proper divisors (706788617).

2120365839 is an equidigital number, since it uses as much as digits as its factorization.

2120365839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706788616.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2120365839 is about 46047.4303191829. The cubic root of 2120365839 is about 1284.7055478587.

The spelling of 2120365839 in words is "two billion, one hundred twenty million, three hundred sixty-five thousand, eight hundred thirty-nine".