11213123130233 has 4 divisors (see below), whose sum is σ = 11872718608500. Its totient is φ = 10553527651968.

The previous prime is 11213123130229. The next prime is 11213123130239. The reversal of 11213123130233 is 33203132131211.

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 4599189063184 + 6613934067049 = 2144572^2 + 2571757^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213123130233 - 2² = 11213123130229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213123130239) 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, 329797739108 + ... + 329797739141.

It is an arithmetic number, because the mean of its divisors is an integer number (2968179652125).

Almost surely, 2^{11213123130233} is an apocalyptic number.

It is an amenable number.

11213123130233 is a deficient number, since it is larger than the sum of its proper divisors (659595478267).

11213123130233 is an equidigital number, since it uses as much as digits as its factorization.

11213123130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659595478266.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11213123130233 its reverse (33203132131211), we get a palindrome (44416255261444).

The spelling of 11213123130233 in words is "eleven trillion, two hundred thirteen billion, one hundred twenty-three million, one hundred thirty thousand, two hundred thirty-three".