13223332691 has 2 divisors, whose sum is σ = 13223332692. Its totient is φ = 13223332690.

The previous prime is 13223332687. The next prime is 13223332699. The reversal of 13223332691 is 19623332231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13223332691 - 2² = 13223332687 is a prime.

It is not a weakly prime, because it can be changed into another prime (13223332699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611666345 + 6611666346.

It is an arithmetic number, because the mean of its divisors is an integer number (6611666346).

Almost surely, 2^13223332691 is an apocalyptic number.

13223332691 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223332691 is an equidigital number, since it uses as much as digits as its factorization.

13223332691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 35.

The spelling of 13223332691 in words is "thirteen billion, two hundred twenty-three million, three hundred thirty-two thousand, six hundred ninety-one".