13131321019 has 2 divisors, whose sum is σ = 13131321020. Its totient is φ = 13131321018.

The previous prime is 13131321011. The next prime is 13131321029. The reversal of 13131321019 is 91012313131.

13131321019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (91012313131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13131321019 - 2³ = 13131321011 is a prime.

It is a super-2 number, since 2×13131321019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13131320984 and 13131321002.

It is not a weakly prime, because it can be changed into another prime (13131321011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565660509 + 6565660510.

It is an arithmetic number, because the mean of its divisors is an integer number (6565660510).

Almost surely, 2^13131321019 is an apocalyptic number.

13131321019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131321019 is an equidigital number, since it uses as much as digits as its factorization.

13131321019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 13131321019 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-one thousand, nineteen".