13261251323 has 2 divisors, whose sum is σ = 13261251324. Its totient is φ = 13261251322.

The previous prime is 13261251313. The next prime is 13261251349. The reversal of 13261251323 is 32315216231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13261251323 - 2⁶ = 13261251259 is a prime.

It is not a weakly prime, because it can be changed into another prime (13261251313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6630625661 + 6630625662.

It is an arithmetic number, because the mean of its divisors is an integer number (6630625662).

Almost surely, 2^13261251323 is an apocalyptic number.

13261251323 is a deficient number, since it is larger than the sum of its proper divisors (1).

13261251323 is an equidigital number, since it uses as much as digits as its factorization.

13261251323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

Adding to 13261251323 its reverse (32315216231), we get a palindrome (45576467554).

The spelling of 13261251323 in words is "thirteen billion, two hundred sixty-one million, two hundred fifty-one thousand, three hundred twenty-three".