11423431443 has 8 divisors (see below), whose sum is σ = 15233462208. Its totient is φ = 7614510824.

The previous prime is 11423431423. The next prime is 11423431447. The reversal of 11423431443 is 34413432411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11423431443 - 2¹² = 11423427347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11423431443.

It is not an unprimeable number, because it can be changed into a prime (11423431447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253221 + ... + 294902.

It is an arithmetic number, because the mean of its divisors is an integer number (1904182776).

Almost surely, 2^11423431443 is an apocalyptic number.

11423431443 is a deficient number, since it is larger than the sum of its proper divisors (3810030765).

11423431443 is an equidigital number, since it uses as much as digits as its factorization.

11423431443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555073.

The product of its digits is 13824, while the sum is 30.

Adding to 11423431443 its reverse (34413432411), we get a palindrome (45836863854).

The spelling of 11423431443 in words is "eleven billion, four hundred twenty-three million, four hundred thirty-one thousand, four hundred forty-three".