13431144019 has 2 divisors, whose sum is σ = 13431144020. Its totient is φ = 13431144018.

The previous prime is 13431143969. The next prime is 13431144073. The reversal of 13431144019 is 91044113431.

It is a weak prime.

It is an emirp because it is prime and its reverse (91044113431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13431144019 - 2²¹ = 13429046867 is a prime.

It is a super-2 number, since 2×13431144019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13431144119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715572009 + 6715572010.

It is an arithmetic number, because the mean of its divisors is an integer number (6715572010).

Almost surely, 2^13431144019 is an apocalyptic number.

13431144019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431144019 is an equidigital number, since it uses as much as digits as its factorization.

13431144019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 13431144019 in words is "thirteen billion, four hundred thirty-one million, one hundred forty-four thousand, nineteen".