11031233440 has 192 divisors, whose sum is σ = 28374312960. Its totient is φ = 4042321920.

The previous prime is 11031233431. The next prime is 11031233449. The reversal of 11031233440 is 4433213011.

It is an interprime number because it is at equal distance from previous prime (11031233431) and next prime (11031233449).

It is a super-2 number, since 2×11031233440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11031233449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7622797 + ... + 7624243.

It is an arithmetic number, because the mean of its divisors is an integer number (147782880).

Almost surely, 2^11031233440 is an apocalyptic number.

11031233440 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 11031233440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14187156480).

11031233440 is an abundant number, since it is smaller than the sum of its proper divisors (17343079520).

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

11031233440 is a wasteful number, since it uses less digits than its factorization.

11031233440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 11031233440 its reverse (4433213011), we get a palindrome (15464446451).

The spelling of 11031233440 in words is "eleven billion, thirty-one million, two hundred thirty-three thousand, four hundred forty".