11033431033 has 4 divisors (see below), whose sum is σ = 11034990180. Its totient is φ = 11031871888.

The previous prime is 11033430959. The next prime is 11033431099. The reversal of 11033431033 is 33013433011.

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 1175324089 + 9858106944 = 34283^2 + 99288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11033431033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11033430995 and 11033431013.

It is not an unprimeable number, because it can be changed into a prime (11033431133) 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, 768910 + ... + 783127.

It is an arithmetic number, because the mean of its divisors is an integer number (2758747545).

Almost surely, 2^11033431033 is an apocalyptic number.

It is an amenable number.

11033431033 is a deficient number, since it is larger than the sum of its proper divisors (1559147).

11033431033 is an equidigital number, since it uses as much as digits as its factorization.

11033431033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559146.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 11033431033 its reverse (33013433011), we get a palindrome (44046864044).

The spelling of 11033431033 in words is "eleven billion, thirty-three million, four hundred thirty-one thousand, thirty-three".