12102321023 has 12 divisors (see below), whose sum is σ = 13270779360. Its totient is φ = 11029951296.

The previous prime is 12102321013. The next prime is 12102321037. The reversal of 12102321023 is 32012320121.

It is not a de Polignac number, because 12102321023 - 2⁸ = 12102320767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102320992 and 12102321010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102321013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439886 + ... + 466587.

It is an arithmetic number, because the mean of its divisors is an integer number (1105898280).

Almost surely, 2^12102321023 is an apocalyptic number.

12102321023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12102321023 is a deficient number, since it is larger than the sum of its proper divisors (1168458337).

12102321023 is an equidigital number, since it uses as much as digits as its factorization.

12102321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906578 (or 906565 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12102321023 its reverse (32012320121), we get a palindrome (44114641144).

The spelling of 12102321023 in words is "twelve billion, one hundred two million, three hundred twenty-one thousand, twenty-three".