12323543312251 has 4 divisors (see below), whose sum is σ = 12323574895104. Its totient is φ = 12323511729400.

The previous prime is 12323543312239. The next prime is 12323543312303. The reversal of 12323543312251 is 15221334532321.

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

It is a cyclic number.

It is not a de Polignac number, because 12323543312251 - 2⁷ = 12323543312123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12323543312251.

It is not an unprimeable number, because it can be changed into a prime (12323543319251) 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, 15198715 + ... + 15988996.

It is an arithmetic number, because the mean of its divisors is an integer number (3080893723776).

Almost surely, 2^{12323543312251} is an apocalyptic number.

12323543312251 is a deficient number, since it is larger than the sum of its proper divisors (31582853).

12323543312251 is an equidigital number, since it uses as much as digits as its factorization.

12323543312251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31582852.

The product of its digits is 129600, while the sum is 37.

Adding to 12323543312251 its reverse (15221334532321), we get a palindrome (27544877844572).

The spelling of 12323543312251 in words is "twelve trillion, three hundred twenty-three billion, five hundred forty-three million, three hundred twelve thousand, two hundred fifty-one".