11442013 has 4 divisors (see below), whose sum is σ = 12482208. Its totient is φ = 10401820.

The previous prime is 11441981. The next prime is 11442019. The reversal of 11442013 is 31024411.

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: 31024411 = 11 ⋅2820401.

It is not a de Polignac number, because 11442013 - 2⁵ = 11441981 is a prime.

It is a super-2 number, since 2×11442013² = 261839322984338, 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 (11442019) 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, 520081 + ... + 520102.

It is an arithmetic number, because the mean of its divisors is an integer number (3120552).

Almost surely, 2^11442013 is an apocalyptic number.

It is an amenable number.

11442013 is a deficient number, since it is larger than the sum of its proper divisors (1040195).

11442013 is a wasteful number, since it uses less digits than its factorization.

11442013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040194.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11442013 is about 3382.6044699314. The cubic root of 11442013 is about 225.3378496482.

Adding to 11442013 its reverse (31024411), we get a palindrome (42466424).

The spelling of 11442013 in words is "eleven million, four hundred forty-two thousand, thirteen".