2311232111213 has 16 divisors (see below), whose sum is σ = 2442684699840. Its totient is φ = 2180771424000.

The previous prime is 2311232111189. The next prime is 2311232111257. The reversal of 2311232111213 is 3121112321132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2311232111213 - 2¹² = 2311232107117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311232111413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7436453 + ... + 7741013.

It is an arithmetic number, because the mean of its divisors is an integer number (152667793740).

Almost surely, 2^{2311232111213} is an apocalyptic number.

It is an amenable number.

2311232111213 is a deficient number, since it is larger than the sum of its proper divisors (131452588627).

2311232111213 is a wasteful number, since it uses less digits than its factorization.

2311232111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306188.

The product of its digits is 432, while the sum is 23.

Adding to 2311232111213 its reverse (3121112321132), we get a palindrome (5432344432345).

The spelling of 2311232111213 in words is "two trillion, three hundred eleven billion, two hundred thirty-two million, one hundred eleven thousand, two hundred thirteen".