12231223023111 has 4 divisors (see below), whose sum is σ = 16308297364152. Its totient is φ = 8154148682072.

The previous prime is 12231223023109. The next prime is 12231223023133. The reversal of 12231223023111 is 11132032213221.

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

It is a cyclic number.

It is not a de Polignac number, because 12231223023111 - 2¹ = 12231223023109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231223023311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038537170516 + ... + 2038537170521.

It is an arithmetic number, because the mean of its divisors is an integer number (4077074341038).

Almost surely, 2^{12231223023111} is an apocalyptic number.

12231223023111 is a deficient number, since it is larger than the sum of its proper divisors (4077074341041).

12231223023111 is an equidigital number, since it uses as much as digits as its factorization.

12231223023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077074341040.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12231223023111 its reverse (11132032213221), we get a palindrome (23363255236332).

The spelling of 12231223023111 in words is "twelve trillion, two hundred thirty-one billion, two hundred twenty-three million, twenty-three thousand, one hundred eleven".