13101001321 has 2 divisors, whose sum is σ = 13101001322. Its totient is φ = 13101001320.

The previous prime is 13101001289. The next prime is 13101001327. The reversal of 13101001321 is 12310010131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7945761321 + 5155240000 = 89139^2 + 71800^2 .

It is a cyclic number.

It is not a de Polignac number, because 13101001321 - 2⁵ = 13101001289 is a prime.

It is a super-2 number, since 2×13101001321² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13101001327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550500660 + 6550500661.

It is an arithmetic number, because the mean of its divisors is an integer number (6550500661).

Almost surely, 2^13101001321 is an apocalyptic number.

It is an amenable number.

13101001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13101001321 is an equidigital number, since it uses as much as digits as its factorization.

13101001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13101001321 its reverse (12310010131), we get a palindrome (25411011452).

The spelling of 13101001321 in words is "thirteen billion, one hundred one million, one thousand, three hundred twenty-one".