321132013193 has 2 divisors, whose sum is σ = 321132013194. Its totient is φ = 321132013192.

The previous prime is 321132013187. The next prime is 321132013243. The reversal of 321132013193 is 391310231123.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269281079929 + 51850933264 = 518923^2 + 227708^2 .

It is a cyclic number.

It is not a de Polignac number, because 321132013193 - 2³⁰ = 320058271369 is a prime.

It is not a weakly prime, because it can be changed into another prime (321132013493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160566006596 + 160566006597.

It is an arithmetic number, because the mean of its divisors is an integer number (160566006597).

Almost surely, 2^321132013193 is an apocalyptic number.

It is an amenable number.

321132013193 is a deficient number, since it is larger than the sum of its proper divisors (1).

321132013193 is an equidigital number, since it uses as much as digits as its factorization.

321132013193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 321132013193 in words is "three hundred twenty-one billion, one hundred thirty-two million, thirteen thousand, one hundred ninety-three".