1313021098237 has 2 divisors, whose sum is σ = 1313021098238. Its totient is φ = 1313021098236.

The previous prime is 1313021098231. The next prime is 1313021098241. The reversal of 1313021098237 is 7328901203131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1049045044441 + 263976053796 = 1024229^2 + 513786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313021098237 - 2²³ = 1313012709629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313021098237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313021098231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656510549118 + 656510549119.

It is an arithmetic number, because the mean of its divisors is an integer number (656510549119).

Almost surely, 2^{1313021098237} is an apocalyptic number.

It is an amenable number.

1313021098237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313021098237 is an equidigital number, since it uses as much as digits as its factorization.

1313021098237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 1313021098237 in words is "one trillion, three hundred thirteen billion, twenty-one million, ninety-eight thousand, two hundred thirty-seven".