11402213 has 4 divisors (see below), whose sum is σ = 11453568. Its totient is φ = 11350860.

The previous prime is 11402207. The next prime is 11402221. The reversal of 11402213 is 31220411.

11402213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31220411 = 2543 ⋅12277.

It is a cyclic number.

It is not a de Polignac number, because 11402213 - 2⁴ = 11402197 is a prime.

It is a super-2 number, since 2×11402213² = 260020922594738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11402233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25343 + ... + 25788.

It is an arithmetic number, because the mean of its divisors is an integer number (2863392).

Almost surely, 2^11402213 is an apocalyptic number.

It is an amenable number.

11402213 is a deficient number, since it is larger than the sum of its proper divisors (51355).

11402213 is an equidigital number, since it uses as much as digits as its factorization.

11402213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51354.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11402213 is about 3376.7163043407. The cubic root of 11402213 is about 225.0762737292.

Adding to 11402213 its reverse (31220411), we get a palindrome (42622624).

The spelling of 11402213 in words is "eleven million, four hundred two thousand, two hundred thirteen".