11231432443 has 32 divisors (see below), whose sum is σ = 14309913600. Its totient is φ = 8738714880.

The previous prime is 11231432431. The next prime is 11231432461. The reversal of 11231432443 is 34423413211.

It is a happy number.

It is not a de Polignac number, because 11231432443 - 2²¹ = 11229335291 is a prime.

It is a super-2 number, since 2×11231432443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231432413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3103371 + ... + 3106987.

It is an arithmetic number, because the mean of its divisors is an integer number (447184800).

Almost surely, 2^11231432443 is an apocalyptic number.

11231432443 is a deficient number, since it is larger than the sum of its proper divisors (3078481157).

11231432443 is an equidigital number, since it uses as much as digits as its factorization.

11231432443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472 (or 4458 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 11231432443 its reverse (34423413211), we get a palindrome (45654845654).

The spelling of 11231432443 in words is "eleven billion, two hundred thirty-one million, four hundred thirty-two thousand, four hundred forty-three".