15322131370873 has 2 divisors, whose sum is σ = 15322131370874. Its totient is φ = 15322131370872.

The previous prime is 15322131370813. The next prime is 15322131370927. The reversal of 15322131370873 is 37807313122351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10369739563264 + 4952391807609 = 3220208^2 + 2225397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15322131370873 is a prime.

It is not a weakly prime, because it can be changed into another prime (15322131370813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7661065685436 + 7661065685437.

It is an arithmetic number, because the mean of its divisors is an integer number (7661065685437).

Almost surely, 2^{15322131370873} is an apocalyptic number.

It is an amenable number.

15322131370873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15322131370873 is an equidigital number, since it uses as much as digits as its factorization.

15322131370873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 15322131370873 in words is "fifteen trillion, three hundred twenty-two billion, one hundred thirty-one million, three hundred seventy thousand, eight hundred seventy-three".