31330211089 has 2 divisors, whose sum is σ = 31330211090. Its totient is φ = 31330211088.

The previous prime is 31330211023. The next prime is 31330211117. The reversal of 31330211089 is 98011203313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29247840400 + 2082370689 = 171020^2 + 45633^2 .

It is a cyclic number.

It is not a de Polignac number, because 31330211089 - 2²⁹ = 30793340177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31330211089.

It is not a weakly prime, because it can be changed into another prime (31330211189) 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, 15665105544 + 15665105545.

It is an arithmetic number, because the mean of its divisors is an integer number (15665105545).

Almost surely, 2^31330211089 is an apocalyptic number.

It is an amenable number.

31330211089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31330211089 is an equidigital number, since it uses as much as digits as its factorization.

31330211089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 31330211089 in words is "thirty-one billion, three hundred thirty million, two hundred eleven thousand, eighty-nine".