11213943 has 8 divisors (see below), whose sum is σ = 16102128. Its totient is φ = 6900864.

The previous prime is 11213843. The next prime is 11213957. The reversal of 11213943 is 34931211.

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

It is a de Polignac number, because none of the positive numbers 2^k-11213943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213143) 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, 143730 + ... + 143807.

It is an arithmetic number, because the mean of its divisors is an integer number (2012766).

Almost surely, 2^11213943 is an apocalyptic number.

11213943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11213943 is a deficient number, since it is larger than the sum of its proper divisors (4888185).

11213943 is a wasteful number, since it uses less digits than its factorization.

11213943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287553.

The product of its digits is 648, while the sum is 24.

The square root of 11213943 is about 3348.7225922731. The cubic root of 11213943 is about 223.8305944385.

The spelling of 11213943 in words is "eleven million, two hundred thirteen thousand, nine hundred forty-three".