11430400043 has 4 divisors (see below), whose sum is σ = 11431986720. Its totient is φ = 11428813368.

The previous prime is 11430400039. The next prime is 11430400061. The reversal of 11430400043 is 34000403411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11430400043 - 2² = 11430400039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11430399988 and 11430400024.

It is not an unprimeable number, because it can be changed into a prime (11430400013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782483 + ... + 796956.

It is an arithmetic number, because the mean of its divisors is an integer number (2857996680).

Almost surely, 2^11430400043 is an apocalyptic number.

11430400043 is a deficient number, since it is larger than the sum of its proper divisors (1586677).

11430400043 is an equidigital number, since it uses as much as digits as its factorization.

11430400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586676.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 11430400043 its reverse (34000403411), we get a palindrome (45430803454).

The spelling of 11430400043 in words is "eleven billion, four hundred thirty million, four hundred thousand, forty-three".