2120112013 has 4 divisors (see below), whose sum is σ = 2120702428. Its totient is φ = 2119521600.

The previous prime is 2120111993. The next prime is 2120112023. The reversal of 2120112013 is 3102110212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12659364 + 2107452649 = 3558^2 + 45907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120111984 and 2120112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120112023) 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, 289788 + ... + 297013.

It is an arithmetic number, because the mean of its divisors is an integer number (530175607).

Almost surely, 2^2120112013 is an apocalyptic number.

It is an amenable number.

2120112013 is a deficient number, since it is larger than the sum of its proper divisors (590415).

2120112013 is an equidigital number, since it uses as much as digits as its factorization.

2120112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590414.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120112013 is about 46044.6741002692. The cubic root of 2120112013 is about 1284.6542823841.

Adding to 2120112013 its reverse (3102110212), we get a palindrome (5222222225).

The spelling of 2120112013 in words is "two billion, one hundred twenty million, one hundred twelve thousand, thirteen".