11213830 has 8 divisors (see below), whose sum is σ = 20184912. Its totient is φ = 4485528.

The previous prime is 11213827. The next prime is 11213833. The reversal of 11213830 is 3831211.

It is an interprime number because it is at equal distance from previous prime (11213827) and next prime (11213833).

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

It is a junction number, because it is equal to n+sod(n) for n = 11213798 and 11213807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560682 + ... + 560701.

It is an arithmetic number, because the mean of its divisors is an integer number (2523114).

Almost surely, 2^11213830 is an apocalyptic number.

11213830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11213830 is a deficient number, since it is larger than the sum of its proper divisors (8971082).

11213830 is a wasteful number, since it uses less digits than its factorization.

11213830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121390.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11213830 is about 3348.7057201253. The cubic root of 11213830 is about 223.8298426083.

The spelling of 11213830 in words is "eleven million, two hundred thirteen thousand, eight hundred thirty".