201403331321 has 2 divisors, whose sum is σ = 201403331322. Its totient is φ = 201403331320.

The previous prime is 201403331281. The next prime is 201403331401. The reversal of 201403331321 is 123133304102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141101653225 + 60301678096 = 375635^2 + 245564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201403331321 is a prime.

It is not a weakly prime, because it can be changed into another prime (201403231321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701665660 + 100701665661.

It is an arithmetic number, because the mean of its divisors is an integer number (100701665661).

Almost surely, 2^201403331321 is an apocalyptic number.

It is an amenable number.

201403331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

201403331321 is an equidigital number, since it uses as much as digits as its factorization.

201403331321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 201403331321 its reverse (123133304102), we get a palindrome (324536635423).

The spelling of 201403331321 in words is "two hundred one billion, four hundred three million, three hundred thirty-one thousand, three hundred twenty-one".