11231730 has 64 divisors (see below), whose sum is σ = 31726080. Its totient is φ = 2817792.

The previous prime is 11231723. The next prime is 11231743. The reversal of 11231730 is 3713211.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3367 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (495720).

Almost surely, 2^11231730 is an apocalyptic number.

11231730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11231730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15863040).

11231730 is an abundant number, since it is smaller than the sum of its proper divisors (20494350).

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

11231730 is a wasteful number, since it uses less digits than its factorization.

11231730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 11231730 is about 3351.3773288008. The cubic root of 11231730 is about 223.9488749181.

Adding to 11231730 its reverse (3713211), we get a palindrome (14944941).

The spelling of 11231730 in words is "eleven million, two hundred thirty-one thousand, seven hundred thirty".