13341421997 has 2 divisors, whose sum is σ = 13341421998. Its totient is φ = 13341421996.

The previous prime is 13341421991. The next prime is 13341422051. The reversal of 13341421997 is 79912414331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13337016196 + 4405801 = 115486^2 + 2099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13341421997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13341421991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6670710998 + 6670710999.

It is an arithmetic number, because the mean of its divisors is an integer number (6670710999).

Almost surely, 2^13341421997 is an apocalyptic number.

It is an amenable number.

13341421997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13341421997 is an equidigital number, since it uses as much as digits as its factorization.

13341421997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The spelling of 13341421997 in words is "thirteen billion, three hundred forty-one million, four hundred twenty-one thousand, nine hundred ninety-seven".