13100003191949 has 2 divisors, whose sum is σ = 13100003191950. Its totient is φ = 13100003191948.

The previous prime is 13100003191853. The next prime is 13100003191963. The reversal of 13100003191949 is 94919130000131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12361426237924 + 738576954025 = 3515882^2 + 859405^2 .

It is an emirp because it is prime and its reverse (94919130000131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13100003191949 - 2²⁴ = 13099986414733 is a prime.

It is a super-2 number, since 2×13100003191949² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13100003181949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550001595974 + 6550001595975.

It is an arithmetic number, because the mean of its divisors is an integer number (6550001595975).

Almost surely, 2^{13100003191949} is an apocalyptic number.

It is an amenable number.

13100003191949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13100003191949 is an equidigital number, since it uses as much as digits as its factorization.

13100003191949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 13100003191949 in words is "thirteen trillion, one hundred billion, three million, one hundred ninety-one thousand, nine hundred forty-nine".