12101201323 has 4 divisors (see below), whose sum is σ = 12491562688. Its totient is φ = 11710839960.

The previous prime is 12101201311. The next prime is 12101201351. The reversal of 12101201323 is 32310210121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101201323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12101201297 and 12101201306.

It is not an unprimeable number, because it can be changed into a prime (12101231323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195180636 + ... + 195180697.

It is an arithmetic number, because the mean of its divisors is an integer number (3122890672).

Almost surely, 2^12101201323 is an apocalyptic number.

12101201323 is a deficient number, since it is larger than the sum of its proper divisors (390361365).

12101201323 is an equidigital number, since it uses as much as digits as its factorization.

12101201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390361364.

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

Adding to 12101201323 its reverse (32310210121), we get a palindrome (44411411444).

The spelling of 12101201323 in words is "twelve billion, one hundred one million, two hundred one thousand, three hundred twenty-three".