4312111213 has 2 divisors, whose sum is σ = 4312111214. Its totient is φ = 4312111212.

The previous prime is 4312111117. The next prime is 4312111247. The reversal of 4312111213 is 3121112134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2413069129 + 1899042084 = 49123^2 + 43578^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312111213 - 2²¹ = 4310014061 is a prime.

It is a super-2 number, since 2×4312111213² = 37188606226560662738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4312111513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156055606 + 2156055607.

It is an arithmetic number, because the mean of its divisors is an integer number (2156055607).

Almost surely, 2^4312111213 is an apocalyptic number.

It is an amenable number.

4312111213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312111213 is an equidigital number, since it uses as much as digits as its factorization.

4312111213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 4312111213 is about 65666.6674424704. The cubic root of 4312111213 is about 1627.6586018978.

Adding to 4312111213 its reverse (3121112134), we get a palindrome (7433223347).

The spelling of 4312111213 in words is "four billion, three hundred twelve million, one hundred eleven thousand, two hundred thirteen".