11243333023213 has 4 divisors (see below), whose sum is σ = 11243351238940. Its totient is φ = 11243314807488.

The previous prime is 11243333023207. The next prime is 11243333023283. The reversal of 11243333023213 is 31232033334211.

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 10589283957924 + 654049065289 = 3254118^2 + 808733^2 .

It is a cyclic number.

It is not a de Polignac number, because 11243333023213 - 2²⁵ = 11243299468781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11243333023283) 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, 8148318 + ... + 9427711.

It is an arithmetic number, because the mean of its divisors is an integer number (2810837809735).

Almost surely, 2^{11243333023213} is an apocalyptic number.

It is an amenable number.

11243333023213 is a deficient number, since it is larger than the sum of its proper divisors (18215727).

11243333023213 is an equidigital number, since it uses as much as digits as its factorization.

11243333023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18215726.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 11243333023213 its reverse (31232033334211), we get a palindrome (42475366357424).

The spelling of 11243333023213 in words is "eleven trillion, two hundred forty-three billion, three hundred thirty-three million, twenty-three thousand, two hundred thirteen".