11443020437 has 2 divisors, whose sum is σ = 11443020438. Its totient is φ = 11443020436.

The previous prime is 11443020403. The next prime is 11443020493. The reversal of 11443020437 is 73402034411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9177831601 + 2265188836 = 95801^2 + 47594^2 .

It is a cyclic number.

It is not a de Polignac number, because 11443020437 - 2⁸ = 11443020181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11443020497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721510218 + 5721510219.

It is an arithmetic number, because the mean of its divisors is an integer number (5721510219).

Almost surely, 2^11443020437 is an apocalyptic number.

It is an amenable number.

11443020437 is a deficient number, since it is larger than the sum of its proper divisors (1).

11443020437 is an equidigital number, since it uses as much as digits as its factorization.

11443020437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 11443020437 its reverse (73402034411), we get a palindrome (84845054848).

The spelling of 11443020437 in words is "eleven billion, four hundred forty-three million, twenty thousand, four hundred thirty-seven".