2311212230113 has 4 divisors (see below), whose sum is σ = 2311298006788. Its totient is φ = 2311126453440.

The previous prime is 2311212230111. The next prime is 2311212230153. The reversal of 2311212230113 is 3110322121132.

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 1977432188944 + 333780041169 = 1406212^2 + 577737^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311212230113 - 2¹ = 2311212230111 is a prime.

It is a super-3 number, since 3×2311212230113³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311212230111) 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, 42847908 + ... + 42901813.

It is an arithmetic number, because the mean of its divisors is an integer number (577824501697).

Almost surely, 2^{2311212230113} is an apocalyptic number.

It is an amenable number.

2311212230113 is a deficient number, since it is larger than the sum of its proper divisors (85776675).

2311212230113 is an equidigital number, since it uses as much as digits as its factorization.

2311212230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85776674.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2311212230113 its reverse (3110322121132), we get a palindrome (5421534351245).

The spelling of 2311212230113 in words is "two trillion, three hundred eleven billion, two hundred twelve million, two hundred thirty thousand, one hundred thirteen".