3201331309993 has 2 divisors, whose sum is σ = 3201331309994. Its totient is φ = 3201331309992.

The previous prime is 3201331309889. The next prime is 3201331309997. The reversal of 3201331309993 is 3999031331023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3192482709504 + 8848600489 = 1786752^2 + 94067^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201331309993 - 2⁹ = 3201331309481 is a prime.

It is not a weakly prime, because it can be changed into another prime (3201331309997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600665654996 + 1600665654997.

It is an arithmetic number, because the mean of its divisors is an integer number (1600665654997).

Almost surely, 2^{3201331309993} is an apocalyptic number.

It is an amenable number.

3201331309993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201331309993 is an equidigital number, since it uses as much as digits as its factorization.

3201331309993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 46.

The spelling of 3201331309993 in words is "three trillion, two hundred one billion, three hundred thirty-one million, three hundred nine thousand, nine hundred ninety-three".