1231432100933 has 2 divisors, whose sum is σ = 1231432100934. Its totient is φ = 1231432100932.

The previous prime is 1231432100911. The next prime is 1231432100957. The reversal of 1231432100933 is 3390012341321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1093618160644 + 137813940289 = 1045762^2 + 371233^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231432100933 - 2⁸ = 1231432100677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231432100933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231432100993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615716050466 + 615716050467.

It is an arithmetic number, because the mean of its divisors is an integer number (615716050467).

Almost surely, 2^{1231432100933} is an apocalyptic number.

It is an amenable number.

1231432100933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231432100933 is an equidigital number, since it uses as much as digits as its factorization.

1231432100933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 1231432100933 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-two million, one hundred thousand, nine hundred thirty-three".