11443339997 has 2 divisors, whose sum is σ = 11443339998. Its totient is φ = 11443339996.

The previous prime is 11443339991. The next prime is 11443340011. The reversal of 11443339997 is 79993334411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6260923876 + 5182416121 = 79126^2 + 71989^2 .

It is a cyclic number.

It is not a de Polignac number, because 11443339997 - 2⁶ = 11443339933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11443339991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721669998 + 5721669999.

It is an arithmetic number, because the mean of its divisors is an integer number (5721669999).

Almost surely, 2^11443339997 is an apocalyptic number.

It is an amenable number.

11443339997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11443339997 is an equidigital number, since it uses as much as digits as its factorization.

11443339997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 53.

The spelling of 11443339997 in words is "eleven billion, four hundred forty-three million, three hundred thirty-nine thousand, nine hundred ninety-seven".