11131320333 has 16 divisors (see below), whose sum is σ = 17959777920. Its totient is φ = 5986592256.

The previous prime is 11131320323. The next prime is 11131320349. The reversal of 11131320333 is 33302313111.

It is not a de Polignac number, because 11131320333 - 2⁵ = 11131320301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131320323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15589728 + ... + 15590441.

It is an arithmetic number, because the mean of its divisors is an integer number (1122486120).

Almost surely, 2^11131320333 is an apocalyptic number.

It is an amenable number.

11131320333 is a deficient number, since it is larger than the sum of its proper divisors (6828457587).

11131320333 is a wasteful number, since it uses less digits than its factorization.

11131320333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31180196.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 11131320333 its reverse (33302313111), we get a palindrome (44433633444).

The spelling of 11131320333 in words is "eleven billion, one hundred thirty-one million, three hundred twenty thousand, three hundred thirty-three".