11013420133 has 4 divisors (see below), whose sum is σ = 11013826828. Its totient is φ = 11013013440.

The previous prime is 11013420101. The next prime is 11013420139. The reversal of 11013420133 is 33102431011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 941691969 + 10071728164 = 30687^2 + 100358^2 .

It is a cyclic number.

It is not a de Polignac number, because 11013420133 - 2⁵ = 11013420101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11013420133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11013420139) 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, 159588 + ... + 217933.

It is an arithmetic number, because the mean of its divisors is an integer number (2753456707).

Almost surely, 2^11013420133 is an apocalyptic number.

It is an amenable number.

11013420133 is a deficient number, since it is larger than the sum of its proper divisors (406695).

11013420133 is an equidigital number, since it uses as much as digits as its factorization.

11013420133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406694.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11013420133 its reverse (33102431011), we get a palindrome (44115851144).

The spelling of 11013420133 in words is "eleven billion, thirteen million, four hundred twenty thousand, one hundred thirty-three".