11213429 has 4 divisors (see below), whose sum is σ = 11220780. Its totient is φ = 11206080.

The previous prime is 11213417. The next prime is 11213453. The reversal of 11213429 is 92431211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92431211 = 433 ⋅213467.

It can be written as a sum of positive squares in 2 ways, for example, as 7980625 + 3232804 = 2825^2 + 1798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 4755.

It is an arithmetic number, because the mean of its divisors is an integer number (2805195).

Almost surely, 2^11213429 is an apocalyptic number.

It is an amenable number.

11213429 is a deficient number, since it is larger than the sum of its proper divisors (7351).

11213429 is an equidigital number, since it uses as much as digits as its factorization.

11213429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7350.

The product of its digits is 432, while the sum is 23.

The square root of 11213429 is about 3348.6458457114. The cubic root of 11213429 is about 223.8271745685.

The spelling of 11213429 in words is "eleven million, two hundred thirteen thousand, four hundred twenty-nine".