31132123130989 has 2 divisors, whose sum is σ = 31132123130990. Its totient is φ = 31132123130988.

The previous prime is 31132123130971. The next prime is 31132123131073. The reversal of 31132123130989 is 98903132123113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25635639817225 + 5496483313764 = 5063165^2 + 2344458^2 .

It is a cyclic number.

It is not a de Polignac number, because 31132123130989 - 2³³ = 31123533196397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132123130939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566061565494 + 15566061565495.

It is an arithmetic number, because the mean of its divisors is an integer number (15566061565495).

Almost surely, 2^{31132123130989} is an apocalyptic number.

It is an amenable number.

31132123130989 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132123130989 is an equidigital number, since it uses as much as digits as its factorization.

31132123130989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 31132123130989 in words is "thirty-one trillion, one hundred thirty-two billion, one hundred twenty-three million, one hundred thirty thousand, nine hundred eighty-nine".