31023093919 has 2 divisors, whose sum is σ = 31023093920. Its totient is φ = 31023093918.

The previous prime is 31023093901. The next prime is 31023093931. The reversal of 31023093919 is 91939032013.

It is a strong prime.

It is an emirp because it is prime and its reverse (91939032013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31023093919 - 2⁹ = 31023093407 is a prime.

It is a super-2 number, since 2×31023093919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023090919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511546959 + 15511546960.

It is an arithmetic number, because the mean of its divisors is an integer number (15511546960).

Almost surely, 2^31023093919 is an apocalyptic number.

31023093919 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023093919 is an equidigital number, since it uses as much as digits as its factorization.

31023093919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39366, while the sum is 40.

The spelling of 31023093919 in words is "thirty-one billion, twenty-three million, ninety-three thousand, nine hundred nineteen".