11223431000 has 64 divisors (see below), whose sum is σ = 26289900000. Its totient is φ = 4484745600.

The previous prime is 11223430987. The next prime is 11223431017. The reversal of 11223431000 is 13432211.

It is a super-2 number, since 2×11223431000² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11223431000.

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, 1063751 + ... + 1074249.

Almost surely, 2^11223431000 is an apocalyptic number.

11223431000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223431000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13144950000).

11223431000 is an abundant number, since it is smaller than the sum of its proper divisors (15066469000).

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

11223431000 is a wasteful number, since it uses less digits than its factorization.

11223431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11589 (or 11575 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11223431000 its reverse (13432211), we get a palindrome (11236863211).

The spelling of 11223431000 in words is "eleven billion, two hundred twenty-three million, four hundred thirty-one thousand".