31211323259 has 2 divisors, whose sum is σ = 31211323260. Its totient is φ = 31211323258.

The previous prime is 31211323177. The next prime is 31211323291. The reversal of 31211323259 is 95232311213.

It is an a-pointer prime, because the next prime (31211323291) can be obtained adding 31211323259 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31211323259 - 2²⁸ = 30942887803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (31211323159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15605661629 + 15605661630.

It is an arithmetic number, because the mean of its divisors is an integer number (15605661630).

Almost surely, 2^31211323259 is an apocalyptic number.

31211323259 is a deficient number, since it is larger than the sum of its proper divisors (1).

31211323259 is an equidigital number, since it uses as much as digits as its factorization.

31211323259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The spelling of 31211323259 in words is "thirty-one billion, two hundred eleven million, three hundred twenty-three thousand, two hundred fifty-nine".