11331132011 has 4 divisors (see below), whose sum is σ = 11927507400. Its totient is φ = 10734756624.

The previous prime is 11331131989. The next prime is 11331132013. The reversal of 11331132011 is 11023113311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331132011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331132013) 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, 298187666 + ... + 298187703.

It is an arithmetic number, because the mean of its divisors is an integer number (2981876850).

Almost surely, 2^11331132011 is an apocalyptic number.

11331132011 is a deficient number, since it is larger than the sum of its proper divisors (596375389).

11331132011 is an equidigital number, since it uses as much as digits as its factorization.

11331132011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596375388.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11331132011 its reverse (11023113311), we get a palindrome (22354245322).

The spelling of 11331132011 in words is "eleven billion, three hundred thirty-one million, one hundred thirty-two thousand, eleven".