12123301023 has 10 divisors (see below), whose sum is σ = 18110116464. Its totient is φ = 8082200628.

The previous prime is 12123301007. The next prime is 12123301079. The reversal of 12123301023 is 32010332121.

It is not a de Polignac number, because 12123301023 - 2⁴ = 12123301007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12123300987 and 12123301005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123301093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 74835111 + ... + 74835272.

Almost surely, 2^12123301023 is an apocalyptic number.

12123301023 is a deficient number, since it is larger than the sum of its proper divisors (5986815441).

12123301023 is an equidigital number, since it uses as much as digits as its factorization.

12123301023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149670395 (or 149670386 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12123301023 its reverse (32010332121), we get a palindrome (44133633144).

The spelling of 12123301023 in words is "twelve billion, one hundred twenty-three million, three hundred one thousand, twenty-three".