11213851 has 8 divisors (see below), whose sum is σ = 12276144. Its totient is φ = 10158720.

The previous prime is 11213843. The next prime is 11213957. The reversal of 11213851 is 15831211.

11213851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11213851 - 2³ = 11213843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213821) 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, 1815 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (1534518).

Almost surely, 2^11213851 is an apocalyptic number.

11213851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11213851 is a deficient number, since it is larger than the sum of its proper divisors (1062293).

11213851 is a wasteful number, since it uses less digits than its factorization.

11213851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581.

The product of its digits is 240, while the sum is 22.

The square root of 11213851 is about 3348.7088556636. The cubic root of 11213851 is about 223.8299823294.

The spelling of 11213851 in words is "eleven million, two hundred thirteen thousand, eight hundred fifty-one".