11431345200 has 120 divisors (see below), whose sum is σ = 39947401536. Its totient is φ = 2771232000.

The previous prime is 11431345181. The next prime is 11431345291. The reversal of 11431345200 is 254313411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419806 + ... + 446205.

Almost surely, 2^11431345200 is an apocalyptic number.

11431345200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11431345200 is an abundant number, since it is smaller than the sum of its proper divisors (28516056336).

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

11431345200 is a wasteful number, since it uses less digits than its factorization.

11431345200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866043 (or 866032 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 11431345200 its reverse (254313411), we get a palindrome (11685658611).

The spelling of 11431345200 in words is "eleven billion, four hundred thirty-one million, three hundred forty-five thousand, two hundred".