31192711423 has 2 divisors, whose sum is σ = 31192711424. Its totient is φ = 31192711422.

The previous prime is 31192711379. The next prime is 31192711447. The reversal of 31192711423 is 32411729113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31192711423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31192711453) 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, 15596355711 + 15596355712.

It is an arithmetic number, because the mean of its divisors is an integer number (15596355712).

Almost surely, 2^31192711423 is an apocalyptic number.

31192711423 is a deficient number, since it is larger than the sum of its proper divisors (1).

31192711423 is an equidigital number, since it uses as much as digits as its factorization.

31192711423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The spelling of 31192711423 in words is "thirty-one billion, one hundred ninety-two million, seven hundred eleven thousand, four hundred twenty-three".