13103221331 has 2 divisors, whose sum is σ = 13103221332. Its totient is φ = 13103221330.

The previous prime is 13103221259. The next prime is 13103221337. The reversal of 13103221331 is 13312230131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13103221331 - 2¹⁸ = 13102959187 is a prime.

It is a super-2 number, since 2×13103221331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13103221337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551610665 + 6551610666.

It is an arithmetic number, because the mean of its divisors is an integer number (6551610666).

Almost surely, 2^13103221331 is an apocalyptic number.

13103221331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13103221331 is an equidigital number, since it uses as much as digits as its factorization.

13103221331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13103221331 its reverse (13312230131), we get a palindrome (26415451462).

The spelling of 13103221331 in words is "thirteen billion, one hundred three million, two hundred twenty-one thousand, three hundred thirty-one".