11331123521223 has 64 divisors (see below), whose sum is σ = 18353275011072. Its totient is φ = 6133688225280.

The previous prime is 11331123521213. The next prime is 11331123521227. The reversal of 11331123521223 is 32212532113311.

It is a happy number.

It is not a de Polignac number, because 11331123521223 - 2²¹ = 11331121424071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331123521227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1818711 + ... + 5096072.

It is an arithmetic number, because the mean of its divisors is an integer number (286769922048).

Almost surely, 2^{11331123521223} is an apocalyptic number.

11331123521223 is a deficient number, since it is larger than the sum of its proper divisors (7022151489849).

11331123521223 is a wasteful number, since it uses less digits than its factorization.

11331123521223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6914964.

The product of its digits is 6480, while the sum is 30.

Adding to 11331123521223 its reverse (32212532113311), we get a palindrome (43543655634534).

The spelling of 11331123521223 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-three million, five hundred twenty-one thousand, two hundred twenty-three".