201403331281 has 2 divisors, whose sum is σ = 201403331282. Its totient is φ = 201403331280.

The previous prime is 201403331203. The next prime is 201403331321. The reversal of 201403331281 is 182133304102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201192617025 + 210714256 = 448545^2 + 14516^2 .

It is a cyclic number.

It is not a de Polignac number, because 201403331281 - 2¹⁵ = 201403298513 is a prime.

It is a super-2 number, since 2×201403331281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201403331581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701665640 + 100701665641.

It is an arithmetic number, because the mean of its divisors is an integer number (100701665641).

Almost surely, 2^201403331281 is an apocalyptic number.

It is an amenable number.

201403331281 is a deficient number, since it is larger than the sum of its proper divisors (1).

201403331281 is an equidigital number, since it uses as much as digits as its factorization.

201403331281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 201403331281 its reverse (182133304102), we get a palindrome (383536635383).

The spelling of 201403331281 in words is "two hundred one billion, four hundred three million, three hundred thirty-one thousand, two hundred eighty-one".