13223661140671 has 2 divisors, whose sum is σ = 13223661140672. Its totient is φ = 13223661140670.

The previous prime is 13223661140609. The next prime is 13223661140699. The reversal of 13223661140671 is 17604116632231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13223661140671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13223661140071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6611830570335 + 6611830570336.

It is an arithmetic number, because the mean of its divisors is an integer number (6611830570336).

Almost surely, 2^{13223661140671} is an apocalyptic number.

13223661140671 is a deficient number, since it is larger than the sum of its proper divisors (1).

13223661140671 is an equidigital number, since it uses as much as digits as its factorization.

13223661140671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 13223661140671 in words is "thirteen trillion, two hundred twenty-three billion, six hundred sixty-one million, one hundred forty thousand, six hundred seventy-one".