11312040 has 64 divisors (see below), whose sum is σ = 34292160. Its totient is φ = 2984960.

The previous prime is 11312039. The next prime is 11312051. The reversal of 11312040 is 4021311.

It is a happy number.

11312040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 12400 + ... + 13280.

It is an arithmetic number, because the mean of its divisors is an integer number (535815).

Almost surely, 2^11312040 is an apocalyptic number.

11312040 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 11312040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17146080).

11312040 is an abundant number, since it is smaller than the sum of its proper divisors (22980120).

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

11312040 is a wasteful number, since it uses less digits than its factorization.

11312040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11312040 is about 3363.3376280118. The cubic root of 11312040 is about 224.4813733816.

Adding to 11312040 its reverse (4021311), we get a palindrome (15333351).

The spelling of 11312040 in words is "eleven million, three hundred twelve thousand, forty".