3131231423 has 2 divisors, whose sum is σ = 3131231424. Its totient is φ = 3131231422.

The previous prime is 3131231419. The next prime is 3131231447. The reversal of 3131231423 is 3241321313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3131231423 - 2² = 3131231419 is a prime.

It is a super-2 number, since 2×3131231423² = 19609220448765209858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3131231473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1565615711 + 1565615712.

It is an arithmetic number, because the mean of its divisors is an integer number (1565615712).

Almost surely, 2^3131231423 is an apocalyptic number.

3131231423 is a deficient number, since it is larger than the sum of its proper divisors (1).

3131231423 is an equidigital number, since it uses as much as digits as its factorization.

3131231423 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3131231423 is about 55957.4072219219. The cubic root of 3131231423 is about 1462.9799994369.

Adding to 3131231423 its reverse (3241321313), we get a palindrome (6372552736).

The spelling of 3131231423 in words is "three billion, one hundred thirty-one million, two hundred thirty-one thousand, four hundred twenty-three".