31222975859 has 2 divisors, whose sum is σ = 31222975860. Its totient is φ = 31222975858.

The previous prime is 31222975799. The next prime is 31222975913. The reversal of 31222975859 is 95857922213.

It is a strong prime.

It is an emirp because it is prime and its reverse (95857922213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31222975859 - 2⁸ = 31222975603 is a prime.

It is a super-3 number, since 3×31222975859³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31222975859.

It is not a weakly prime, because it can be changed into another prime (31222975159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611487929 + 15611487930.

It is an arithmetic number, because the mean of its divisors is an integer number (15611487930).

Almost surely, 2^31222975859 is an apocalyptic number.

31222975859 is a deficient number, since it is larger than the sum of its proper divisors (1).

31222975859 is an equidigital number, since it uses as much as digits as its factorization.

31222975859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 53.

The spelling of 31222975859 in words is "thirty-one billion, two hundred twenty-two million, nine hundred seventy-five thousand, eight hundred fifty-nine".