13315401289 has 2 divisors, whose sum is σ = 13315401290. Its totient is φ = 13315401288.

The previous prime is 13315401259. The next prime is 13315401299. The reversal of 13315401289 is 98210451331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12920186889 + 395214400 = 113667^2 + 19880^2 .

It is a cyclic number.

It is not a de Polignac number, because 13315401289 - 2¹¹ = 13315399241 is a prime.

It is a super-2 number, since 2×13315401289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13315401259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6657700644 + 6657700645.

It is an arithmetic number, because the mean of its divisors is an integer number (6657700645).

Almost surely, 2^13315401289 is an apocalyptic number.

It is an amenable number.

13315401289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13315401289 is an equidigital number, since it uses as much as digits as its factorization.

13315401289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 13315401289 in words is "thirteen billion, three hundred fifteen million, four hundred one thousand, two hundred eighty-nine".