1210231331999 has 2 divisors, whose sum is σ = 1210231332000. Its totient is φ = 1210231331998.

The previous prime is 1210231331951. The next prime is 1210231332007. The reversal of 1210231331999 is 9991331320121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210231331999 - 2²⁸ = 1209962896543 is a prime.

It is a super-2 number, since 2×1210231331999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210231333999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605115665999 + 605115666000.

It is an arithmetic number, because the mean of its divisors is an integer number (605115666000).

Almost surely, 2^{1210231331999} is an apocalyptic number.

1210231331999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210231331999 is an equidigital number, since it uses as much as digits as its factorization.

1210231331999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 1210231331999 in words is "one trillion, two hundred ten billion, two hundred thirty-one million, three hundred thirty-one thousand, nine hundred ninety-nine".