12031210111223 has 4 divisors (see below), whose sum is σ = 12228443063928. Its totient is φ = 11833977158520.

The previous prime is 12031210111199. The next prime is 12031210111231. The reversal of 12031210111223 is 32211101213021.

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 12031210111223 - 2¹² = 12031210107127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031210111195 and 12031210111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031210111243) 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, 98616476261 + ... + 98616476382.

It is an arithmetic number, because the mean of its divisors is an integer number (3057110765982).

Almost surely, 2^{12031210111223} is an apocalyptic number.

12031210111223 is a deficient number, since it is larger than the sum of its proper divisors (197232952705).

12031210111223 is an equidigital number, since it uses as much as digits as its factorization.

12031210111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197232952704.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12031210111223 its reverse (32211101213021), we get a palindrome (44242311324244).

The spelling of 12031210111223 in words is "twelve trillion, thirty-one billion, two hundred ten million, one hundred eleven thousand, two hundred twenty-three".