11443113331231 has 2 divisors, whose sum is σ = 11443113331232. Its totient is φ = 11443113331230.

The previous prime is 11443113331219. The next prime is 11443113331253. The reversal of 11443113331231 is 13213331134411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11443113331231 - 2²³ = 11443104942623 is a prime.

It is a super-2 number, since 2×11443113331231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11443113331193 and 11443113331202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11443113337231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5721556665615 + 5721556665616.

It is an arithmetic number, because the mean of its divisors is an integer number (5721556665616).

Almost surely, 2^{11443113331231} is an apocalyptic number.

11443113331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11443113331231 is an equidigital number, since it uses as much as digits as its factorization.

11443113331231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

Adding to 11443113331231 its reverse (13213331134411), we get a palindrome (24656444465642).

The spelling of 11443113331231 in words is "eleven trillion, four hundred forty-three billion, one hundred thirteen million, three hundred thirty-one thousand, two hundred thirty-one".