11443197253 has 2 divisors, whose sum is σ = 11443197254. Its totient is φ = 11443197252.

The previous prime is 11443197251. The next prime is 11443197257. The reversal of 11443197253 is 35279134411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9120632004 + 2322565249 = 95502^2 + 48193^2 .

It is an emirp because it is prime and its reverse (35279134411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11443197253 - 2¹ = 11443197251 is a prime.

Together with 11443197251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11443197251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721598626 + 5721598627.

It is an arithmetic number, because the mean of its divisors is an integer number (5721598627).

Almost surely, 2^11443197253 is an apocalyptic number.

It is an amenable number.

11443197253 is a deficient number, since it is larger than the sum of its proper divisors (1).

11443197253 is an equidigital number, since it uses as much as digits as its factorization.

11443197253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The spelling of 11443197253 in words is "eleven billion, four hundred forty-three million, one hundred ninety-seven thousand, two hundred fifty-three".