1231330319963 has 2 divisors, whose sum is σ = 1231330319964. Its totient is φ = 1231330319962.

The previous prime is 1231330319927. The next prime is 1231330320053. The reversal of 1231330319963 is 3699130331321.

It is a weak prime.

It is an emirp because it is prime and its reverse (3699130331321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231330319963 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1231330319563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615665159981 + 615665159982.

It is an arithmetic number, because the mean of its divisors is an integer number (615665159982).

Almost surely, 2^{1231330319963} is an apocalyptic number.

1231330319963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231330319963 is an equidigital number, since it uses as much as digits as its factorization.

1231330319963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 44.

The spelling of 1231330319963 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, three hundred nineteen thousand, nine hundred sixty-three".