11333213441 has 16 divisors (see below), whose sum is σ = 12493061568. Its totient is φ = 10280295520.

The previous prime is 11333213431. The next prime is 11333213443. The reversal of 11333213441 is 14431233311.

It is a de Polignac number, because none of the positive numbers 2^k-11333213441 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 11333213441.

It is not an unprimeable number, because it can be changed into a prime (11333213443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612461 + ... + 630693.

It is an arithmetic number, because the mean of its divisors is an integer number (780816348).

Almost surely, 2^11333213441 is an apocalyptic number.

11333213441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11333213441 is a deficient number, since it is larger than the sum of its proper divisors (1159848127).

11333213441 is an equidigital number, since it uses as much as digits as its factorization.

11333213441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18733 (or 18711 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 11333213441 its reverse (14431233311), we get a palindrome (25764446752).

The spelling of 11333213441 in words is "eleven billion, three hundred thirty-three million, two hundred thirteen thousand, four hundred forty-one".