3111112223213 has 2 divisors, whose sum is σ = 3111112223214. Its totient is φ = 3111112223212.

The previous prime is 3111112223209. The next prime is 3111112223249. The reversal of 3111112223213 is 3123222111113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2969618134564 + 141494088649 = 1723258^2 + 376157^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111112223213 - 2² = 3111112223209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111112223293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555556111606 + 1555556111607.

It is an arithmetic number, because the mean of its divisors is an integer number (1555556111607).

Almost surely, 2^{3111112223213} is an apocalyptic number.

It is an amenable number.

3111112223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111112223213 is an equidigital number, since it uses as much as digits as its factorization.

3111112223213 is an evil number, because the sum of its binary digits is even.

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

Adding to 3111112223213 its reverse (3123222111113), we get a palindrome (6234334334326).

The spelling of 3111112223213 in words is "three trillion, one hundred eleven billion, one hundred twelve million, two hundred twenty-three thousand, two hundred thirteen".