133312332421409 has 2 divisors, whose sum is σ = 133312332421410. Its totient is φ = 133312332421408.

The previous prime is 133312332421391. The next prime is 133312332421447. The reversal of 133312332421409 is 904124233213331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127426507072225 + 5885825349184 = 11288335^2 + 2426072^2 .

It is a cyclic number.

It is not a de Polignac number, because 133312332421409 - 2²⁸ = 133312063985953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (133312332421109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66656166210704 + 66656166210705.

It is an arithmetic number, because the mean of its divisors is an integer number (66656166210705).

Almost surely, 2^{133312332421409} is an apocalyptic number.

It is an amenable number.

133312332421409 is a deficient number, since it is larger than the sum of its proper divisors (1).

133312332421409 is an equidigital number, since it uses as much as digits as its factorization.

133312332421409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 133312332421409 in words is "one hundred thirty-three trillion, three hundred twelve billion, three hundred thirty-two million, four hundred twenty-one thousand, four hundred nine".