12123011023 has 8 divisors (see below), whose sum is σ = 12262989600. Its totient is φ = 11983116288.

The previous prime is 12123011003. The next prime is 12123011053. The reversal of 12123011023 is 32011032121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12123011023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12123010988 and 12123011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123011003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297615 + ... + 335887.

It is an arithmetic number, because the mean of its divisors is an integer number (1532873700).

Almost surely, 2^12123011023 is an apocalyptic number.

12123011023 is a deficient number, since it is larger than the sum of its proper divisors (139978577).

12123011023 is an equidigital number, since it uses as much as digits as its factorization.

12123011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41921.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12123011023 its reverse (32011032121), we get a palindrome (44134043144).

The spelling of 12123011023 in words is "twelve billion, one hundred twenty-three million, eleven thousand, twenty-three".