2120513236017 has 24 divisors (see below), whose sum is σ = 3191742673728. Its totient is φ = 1250425487520.

The previous prime is 2120513236007. The next prime is 2120513236043. The reversal of 2120513236017 is 7106323150212.

It is not a de Polignac number, because 2120513236017 - 2¹⁶ = 2120513170481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2120513236007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78927573 + ... + 78954434.

It is an arithmetic number, because the mean of its divisors is an integer number (132989278072).

Almost surely, 2^{2120513236017} is an apocalyptic number.

It is an amenable number.

2120513236017 is a deficient number, since it is larger than the sum of its proper divisors (1071229437711).

2120513236017 is a wasteful number, since it uses less digits than its factorization.

2120513236017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157882069 (or 157882058 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 2120513236017 its reverse (7106323150212), we get a palindrome (9226836386229).

The spelling of 2120513236017 in words is "two trillion, one hundred twenty billion, five hundred thirteen million, two hundred thirty-six thousand, seventeen".