11843013 has 48 divisors (see below), whose sum is σ = 20238336. Its totient is φ = 6027840.

The previous prime is 11842993. The next prime is 11843047. The reversal of 11843013 is 31034811.

It is not a de Polignac number, because 11843013 - 2¹³ = 11834821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11843053) 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 47 ways as a sum of consecutive naturals, for example, 166768 + ... + 166838.

It is an arithmetic number, because the mean of its divisors is an integer number (421632).

Almost surely, 2^11843013 is an apocalyptic number.

11843013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11843013 is a deficient number, since it is larger than the sum of its proper divisors (8395323).

11843013 is a wasteful number, since it uses less digits than its factorization.

11843013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 11843013 is about 3441.3678966365. The cubic root of 11843013 is about 227.9401004543.

Adding to 11843013 its reverse (31034811), we get a palindrome (42877824).

The spelling of 11843013 in words is "eleven million, eight hundred forty-three thousand, thirteen".