11231340 has 24 divisors (see below), whose sum is σ = 31447920. Its totient is φ = 2995008.

The previous prime is 11231329. The next prime is 11231357. The reversal of 11231340 is 4313211.

It is a super-2 number, since 2×11231340² = 252285996391200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93535 + ... + 93654.

It is an arithmetic number, because the mean of its divisors is an integer number (1310330).

Almost surely, 2^11231340 is an apocalyptic number.

11231340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231340 is an abundant number, since it is smaller than the sum of its proper divisors (20216580).

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

11231340 is a wasteful number, since it uses less digits than its factorization.

11231340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187201 (or 187199 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11231340 is about 3351.3191432628. The cubic root of 11231340 is about 223.9462828250.

Adding to 11231340 its reverse (4313211), we get a palindrome (15544551).

The spelling of 11231340 in words is "eleven million, two hundred thirty-one thousand, three hundred forty".