11133323440 has 40 divisors (see below), whose sum is σ = 26239579488. Its totient is φ = 4392322560.

The previous prime is 11133323419. The next prime is 11133323459. The reversal of 11133323440 is 4432333111.

It is a tau number, because it is divible by the number of its divisors (40).

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, 947356 + ... + 959035.

Almost surely, 2^11133323440 is an apocalyptic number.

11133323440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11133323440 is an abundant number, since it is smaller than the sum of its proper divisors (15106256048).

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

11133323440 is a wasteful number, since it uses less digits than its factorization.

11133323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906477 (or 1906471 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 11133323440 its reverse (4432333111), we get a palindrome (15565656551).

The spelling of 11133323440 in words is "eleven billion, one hundred thirty-three million, three hundred twenty-three thousand, four hundred forty".