1331415256019 has 2 divisors, whose sum is σ = 1331415256020. Its totient is φ = 1331415256018.

The previous prime is 1331415255917. The next prime is 1331415256049. The reversal of 1331415256019 is 9106525141331.

It is a strong prime.

It is an emirp because it is prime and its reverse (9106525141331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331415256019 - 2¹² = 1331415251923 is a prime.

It is a super-2 number, since 2×1331415256019² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1331415256049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665707628009 + 665707628010.

It is an arithmetic number, because the mean of its divisors is an integer number (665707628010).

Almost surely, 2^{1331415256019} is an apocalyptic number.

1331415256019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331415256019 is an equidigital number, since it uses as much as digits as its factorization.

1331415256019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 41.

The spelling of 1331415256019 in words is "one trillion, three hundred thirty-one billion, four hundred fifteen million, two hundred fifty-six thousand, nineteen".