3321312431 has 2 divisors, whose sum is σ = 3321312432. Its totient is φ = 3321312430.

The previous prime is 3321312419. The next prime is 3321312473. The reversal of 3321312431 is 1342131233.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3321312431 - 2⁶ = 3321312367 is a prime.

It is a super-2 number, since 2×3321312431² = 22062232528630259522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3321312397 and 3321312406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321312031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660656215 + 1660656216.

It is an arithmetic number, because the mean of its divisors is an integer number (1660656216).

Almost surely, 2^3321312431 is an apocalyptic number.

3321312431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321312431 is an equidigital number, since it uses as much as digits as its factorization.

3321312431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 3321312431 is about 57630.8288245102. The cubic root of 3321312431 is about 1492.0037349836.

Adding to 3321312431 its reverse (1342131233), we get a palindrome (4663443664).

The spelling of 3321312431 in words is "three billion, three hundred twenty-one million, three hundred twelve thousand, four hundred thirty-one".