31023022099 has 2 divisors, whose sum is σ = 31023022100. Its totient is φ = 31023022098.

The previous prime is 31023022073. The next prime is 31023022123. The reversal of 31023022099 is 99022032013.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31023022099 - 2¹⁹ = 31022497811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31023022099.

It is not a weakly prime, because it can be changed into another prime (31023022999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511511049 + 15511511050.

It is an arithmetic number, because the mean of its divisors is an integer number (15511511050).

Almost surely, 2^31023022099 is an apocalyptic number.

31023022099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023022099 is an equidigital number, since it uses as much as digits as its factorization.

31023022099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 31023022099 in words is "thirty-one billion, twenty-three million, twenty-two thousand, ninety-nine".