11313432440 has 64 divisors (see below), whose sum is σ = 26945503200. Its totient is φ = 4267694592.

The previous prime is 11313432439. The next prime is 11313432497. The reversal of 11313432440 is 4423431311.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63527 + ... + 163286.

Almost surely, 2^11313432440 is an apocalyptic number.

11313432440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11313432440 is an abundant number, since it is smaller than the sum of its proper divisors (15632070760).

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

11313432440 is a wasteful number, since it uses less digits than its factorization.

11313432440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226896 (or 226892 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11313432440 its reverse (4423431311), we get a palindrome (15736863751).

The spelling of 11313432440 in words is "eleven billion, three hundred thirteen million, four hundred thirty-two thousand, four hundred forty".