11405013 has 4 divisors (see below), whose sum is σ = 15206688. Its totient is φ = 7603340.

The previous prime is 11404999. The next prime is 11405029. The reversal of 11405013 is 31050411.

11405013 is digitally balanced in base 2 and base 3, because in such bases 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.

It is a cyclic number.

It is not a de Polignac number, because 11405013 - 2¹⁶ = 11339477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11404983 and 11405001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405063) 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, 1900833 + ... + 1900838.

It is an arithmetic number, because the mean of its divisors is an integer number (3801672).

Almost surely, 2^11405013 is an apocalyptic number.

It is an amenable number.

11405013 is a deficient number, since it is larger than the sum of its proper divisors (3801675).

11405013 is an equidigital number, since it uses as much as digits as its factorization.

11405013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801674.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 11405013 is about 3377.1308828649. The cubic root of 11405013 is about 225.0946959421.

Adding to 11405013 its reverse (31050411), we get a palindrome (42455424).

The spelling of 11405013 in words is "eleven million, four hundred five thousand, thirteen".