11040123312 has 40 divisors (see below), whose sum is σ = 31689244080. Its totient is φ = 3680040960.

The previous prime is 11040123271. The next prime is 11040123313. The reversal of 11040123312 is 21332104011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11040123313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12777489 + ... + 12778352.

It is an arithmetic number, because the mean of its divisors is an integer number (792231102).

Almost surely, 2^11040123312 is an apocalyptic number.

11040123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11040123312 is an abundant number, since it is smaller than the sum of its proper divisors (20649120768).

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

11040123312 is a wasteful number, since it uses less digits than its factorization.

11040123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25555858 (or 25555846 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11040123312 its reverse (21332104011), we get a palindrome (32372227323).

The spelling of 11040123312 in words is "eleven billion, forty million, one hundred twenty-three thousand, three hundred twelve".