11013405 has 16 divisors (see below), whose sum is σ = 18977280. Its totient is φ = 5421888.

The previous prime is 11013397. The next prime is 11013427. The reversal of 11013405 is 50431011.

It is not a de Polignac number, because 11013405 - 2³ = 11013397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28045 + ... + 28434.

It is an arithmetic number, because the mean of its divisors is an integer number (1186080).

Almost surely, 2^11013405 is an apocalyptic number.

11013405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11013405 is a deficient number, since it is larger than the sum of its proper divisors (7963875).

11013405 is a wasteful number, since it uses less digits than its factorization.

11013405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56500.

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

The square root of 11013405 is about 3318.6450548379. The cubic root of 11013405 is about 222.4883131513.

Adding to 11013405 its reverse (50431011), we get a palindrome (61444416).

The spelling of 11013405 in words is "eleven million, thirteen thousand, four hundred five".