13313401021 has 2 divisors, whose sum is σ = 13313401022. Its totient is φ = 13313401020.

The previous prime is 13313401009. The next prime is 13313401033. The reversal of 13313401021 is 12010431331.

It is a balanced prime because it is at equal distance from previous prime (13313401009) and next prime (13313401033).

It can be written as a sum of positive squares in only one way, i.e., 13305622500 + 7778521 = 115350^2 + 2789^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313401021 - 2⁹ = 13313400509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13313401021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13313401051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656700510 + 6656700511.

It is an arithmetic number, because the mean of its divisors is an integer number (6656700511).

Almost surely, 2^13313401021 is an apocalyptic number.

It is an amenable number.

13313401021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313401021 is an equidigital number, since it uses as much as digits as its factorization.

13313401021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13313401021 its reverse (12010431331), we get a palindrome (25323832352).

The spelling of 13313401021 in words is "thirteen billion, three hundred thirteen million, four hundred one thousand, twenty-one".