13442401042991 has 2 divisors, whose sum is σ = 13442401042992. Its totient is φ = 13442401042990.

The previous prime is 13442401042979. The next prime is 13442401043081. The reversal of 13442401042991 is 19924010424431.

It is a weak prime.

It is an emirp because it is prime and its reverse (19924010424431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13442401042991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13442401042901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721200521495 + 6721200521496.

It is an arithmetic number, because the mean of its divisors is an integer number (6721200521496).

Almost surely, 2^{13442401042991} is an apocalyptic number.

13442401042991 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442401042991 is an equidigital number, since it uses as much as digits as its factorization.

13442401042991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 13442401042991 in words is "thirteen trillion, four hundred forty-two billion, four hundred one million, forty-two thousand, nine hundred ninety-one".