13105503457 has 2 divisors, whose sum is σ = 13105503458. Its totient is φ = 13105503456.

The previous prime is 13105503413. The next prime is 13105503461. The reversal of 13105503457 is 75430550131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12011283216 + 1094220241 = 109596^2 + 33079^2 .

It is a cyclic number.

It is not a de Polignac number, because 13105503457 - 2²⁷ = 12971285729 is a prime.

It is a super-2 number, since 2×13105503457² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13105503757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552751728 + 6552751729.

It is an arithmetic number, because the mean of its divisors is an integer number (6552751729).

Almost surely, 2^13105503457 is an apocalyptic number.

It is an amenable number.

13105503457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13105503457 is an equidigital number, since it uses as much as digits as its factorization.

13105503457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The spelling of 13105503457 in words is "thirteen billion, one hundred five million, five hundred three thousand, four hundred fifty-seven".