13223251499 has 2 divisors, whose sum is σ = 13223251500. Its totient is φ = 13223251498.

The previous prime is 13223251477. The next prime is 13223251501. The reversal of 13223251499 is 99415232231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13223251499 - 2¹² = 13223247403 is a prime.

Together with 13223251501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13223251999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611625749 + 6611625750.

It is an arithmetic number, because the mean of its divisors is an integer number (6611625750).

Almost surely, 2^13223251499 is an apocalyptic number.

13223251499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223251499 is an equidigital number, since it uses as much as digits as its factorization.

13223251499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The spelling of 13223251499 in words is "thirteen billion, two hundred twenty-three million, two hundred fifty-one thousand, four hundred ninety-nine".