12231120213123 has 24 divisors (see below), whose sum is σ = 19144760366160. Its totient is φ = 6925090334400.

The previous prime is 12231120213107. The next prime is 12231120213139. The reversal of 12231120213123 is 32131202113221.

It is an interprime number because it is at equal distance from previous prime (12231120213107) and next prime (12231120213139).

It is not a de Polignac number, because 12231120213123 - 2⁴ = 12231120213107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12231120213093 and 12231120213102.

It is not an unprimeable number, because it can be changed into a prime (12231120213023) 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 23 ways as a sum of consecutive naturals, for example, 381657828 + ... + 381689873.

It is an arithmetic number, because the mean of its divisors is an integer number (797698348590).

Almost surely, 2^{12231120213123} is an apocalyptic number.

12231120213123 is a deficient number, since it is larger than the sum of its proper divisors (6913640153037).

12231120213123 is a wasteful number, since it uses less digits than its factorization.

12231120213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763347827 (or 763347820 counting only the distinct ones).

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

Adding to 12231120213123 its reverse (32131202113221), we get a palindrome (44362322326344).

The spelling of 12231120213123 in words is "twelve trillion, two hundred thirty-one billion, one hundred twenty million, two hundred thirteen thousand, one hundred twenty-three".