11123440432 has 40 divisors (see below), whose sum is σ = 23337794480. Its totient is φ = 5105514240.

The previous prime is 11123440421. The next prime is 11123440469. The reversal of 11123440432 is 23404432111.

It is a junction number, because it is equal to n+sod(n) for n = 11123440397 and 11123440406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110082 + ... + 185377.

It is an arithmetic number, because the mean of its divisors is an integer number (583444862).

Almost surely, 2^11123440432 is an apocalyptic number.

It is an amenable number.

11123440432 is an abundant number, since it is smaller than the sum of its proper divisors (12214354048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123440432 is a wasteful number, since it uses less digits than its factorization.

11123440432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295661 (or 295655 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 11123440432 its reverse (23404432111), we get a palindrome (34527872543).

The spelling of 11123440432 in words is "eleven billion, one hundred twenty-three million, four hundred forty thousand, four hundred thirty-two".