11500213 has 8 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 11149920.

The previous prime is 11500189. The next prime is 11500217. The reversal of 11500213 is 31200511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11500213 - 2²¹ = 9403061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11500193 and 11500202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11500217) 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, 6556 + ... + 8122.

It is an arithmetic number, because the mean of its divisors is an integer number (1481760).

Almost surely, 2^11500213 is an apocalyptic number.

It is an amenable number.

11500213 is a deficient number, since it is larger than the sum of its proper divisors (353867).

11500213 is a wasteful number, since it uses less digits than its factorization.

11500213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 11500213 is about 3391.1963965539. The cubic root of 11500213 is about 225.7192653276.

Adding to 11500213 its reverse (31200511), we get a palindrome (42700724).

The spelling of 11500213 in words is "eleven million, five hundred thousand, two hundred thirteen".