11013403 has 4 divisors (see below), whose sum is σ = 11116440. Its totient is φ = 10910368.

The previous prime is 11013397. The next prime is 11013427. The reversal of 11013403 is 30431011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30431011 = 13 ⋅2340847.

It is a cyclic number.

It is not a de Polignac number, because 11013403 - 2⁵ = 11013371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11013473) 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, 51358 + ... + 51571.

It is an arithmetic number, because the mean of its divisors is an integer number (2779110).

Almost surely, 2^11013403 is an apocalyptic number.

11013403 is a deficient number, since it is larger than the sum of its proper divisors (103037).

11013403 is a wasteful number, since it uses less digits than its factorization.

11013403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103036.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11013403 is about 3318.6447535101. The cubic root of 11013403 is about 222.4882996835.

Adding to 11013403 its reverse (30431011), we get a palindrome (41444414).

The spelling of 11013403 in words is "eleven million, thirteen thousand, four hundred three".