1231313099983 has 2 divisors, whose sum is σ = 1231313099984. Its totient is φ = 1231313099982.

The previous prime is 1231313099923. The next prime is 1231313100013. The reversal of 1231313099983 is 3899903131321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231313099983 is a prime.

It is a super-2 number, since 2×1231313099983² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231313099983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231313099923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615656549991 + 615656549992.

It is an arithmetic number, because the mean of its divisors is an integer number (615656549992).

Almost surely, 2^{1231313099983} is an apocalyptic number.

1231313099983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231313099983 is an equidigital number, since it uses as much as digits as its factorization.

1231313099983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 52.

The spelling of 1231313099983 in words is "one trillion, two hundred thirty-one billion, three hundred thirteen million, ninety-nine thousand, nine hundred eighty-three".