12023213213123 has 6 divisors (see below), whose sum is σ = 13986186798996. Its totient is φ = 10305611325492.

The previous prime is 12023213212931. The next prime is 12023213213147. The reversal of 12023213213123 is 32131231232021.

It is not a de Polignac number, because 12023213213123 - 2¹⁰ = 12023213212099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023213213092 and 12023213213101.

It is not an unprimeable number, because it can be changed into a prime (12023213213153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122685849065 + ... + 122685849162.

It is an arithmetic number, because the mean of its divisors is an integer number (2331031133166).

Almost surely, 2^{12023213213123} is an apocalyptic number.

12023213213123 is a deficient number, since it is larger than the sum of its proper divisors (1962973585873).

12023213213123 is an equidigital number, since it uses as much as digits as its factorization.

12023213213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245371698241 (or 245371698234 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12023213213123 its reverse (32131231232021), we get a palindrome (44154444445144).

The spelling of 12023213213123 in words is "twelve trillion, twenty-three billion, two hundred thirteen million, two hundred thirteen thousand, one hundred twenty-three".