31232231423 has 2 divisors, whose sum is σ = 31232231424. Its totient is φ = 31232231422.

The previous prime is 31232231417. The next prime is 31232231453. The reversal of 31232231423 is 32413223213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31232231423 - 2³⁴ = 14052362239 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 31232231392 and 31232231401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31232231453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616115711 + 15616115712.

It is an arithmetic number, because the mean of its divisors is an integer number (15616115712).

Almost surely, 2^31232231423 is an apocalyptic number.

31232231423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232231423 is an equidigital number, since it uses as much as digits as its factorization.

31232231423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

Adding to 31232231423 its reverse (32413223213), we get a palindrome (63645454636).

The spelling of 31232231423 in words is "thirty-one billion, two hundred thirty-two million, two hundred thirty-one thousand, four hundred twenty-three".