3331213231 has 2 divisors, whose sum is σ = 3331213232. Its totient is φ = 3331213230.

The previous prime is 3331213229. The next prime is 3331213243. The reversal of 3331213231 is 1323121333.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3331213231 - 2¹ = 3331213229 is a prime.

It is a super-2 number, since 2×3331213231² = 22193963180778918722, which contains 22 as substring.

Together with 3331213229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3331213261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665606615 + 1665606616.

It is an arithmetic number, because the mean of its divisors is an integer number (1665606616).

Almost surely, 2^3331213231 is an apocalyptic number.

3331213231 is a deficient number, since it is larger than the sum of its proper divisors (1).

3331213231 is an equidigital number, since it uses as much as digits as its factorization.

3331213231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 22.

The square root of 3331213231 is about 57716.6633737606. The cubic root of 3331213231 is about 1493.4848137961.

Adding to 3331213231 its reverse (1323121333), we get a palindrome (4654334564).

The spelling of 3331213231 in words is "three billion, three hundred thirty-one million, two hundred thirteen thousand, two hundred thirty-one".