11213750 has 20 divisors (see below), whose sum is σ = 21021396. Its totient is φ = 4485000.

The previous prime is 11213747. The next prime is 11213759. The reversal of 11213750 is 5731211.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213759) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3236 + ... + 5735.

Almost surely, 2^11213750 is an apocalyptic number.

11213750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11213750 is a deficient number, since it is larger than the sum of its proper divisors (9807646).

11213750 is an frugal number, since it uses more digits than its factorization.

11213750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993 (or 8978 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11213750 is about 3348.6937751906. The cubic root of 11213750 is about 223.8293103361.

Adding to 11213750 its reverse (5731211), we get a palindrome (16944961).

The spelling of 11213750 in words is "eleven million, two hundred thirteen thousand, seven hundred fifty".