1313298385389 has 12 divisors (see below), whose sum is σ = 1898088837372. Its totient is φ = 875023512000.

The previous prime is 1313298385387. The next prime is 1313298385391. The reversal of 1313298385389 is 9835838923131.

1313298385389 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 2 + 98 + 3 + 8 + 538 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (1313298385387) and next prime (1313298385391).

It can be written as a sum of positive squares in 2 ways, for example, as 1060761984489 + 252536400900 = 1029933^2 + 502530^2 .

It is not a de Polignac number, because 1313298385389 - 2¹ = 1313298385387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313298385387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42379062 + ... + 42410039.

It is an arithmetic number, because the mean of its divisors is an integer number (158174069781).

Almost surely, 2^{1313298385389} is an apocalyptic number.

It is an amenable number.

1313298385389 is a deficient number, since it is larger than the sum of its proper divisors (584790451983).

1313298385389 is a wasteful number, since it uses less digits than its factorization.

1313298385389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84790828 (or 84790825 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 1313298385389 in words is "one trillion, three hundred thirteen billion, two hundred ninety-eight million, three hundred eighty-five thousand, three hundred eighty-nine".