12312274311143 has 4 divisors (see below), whose sum is σ = 12320902395480. Its totient is φ = 12303646226808.

The previous prime is 12312274311079. The next prime is 12312274311149. The reversal of 12312274311143 is 34111347221321.

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 12312274311143 - 2⁶ = 12312274311079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312274311149) 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, 4314040028 + ... + 4314042881.

It is an arithmetic number, because the mean of its divisors is an integer number (3080225598870).

Almost surely, 2^{12312274311143} is an apocalyptic number.

12312274311143 is a deficient number, since it is larger than the sum of its proper divisors (8628084337).

12312274311143 is an equidigital number, since it uses as much as digits as its factorization.

12312274311143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628084336.

The product of its digits is 24192, while the sum is 35.

The spelling of 12312274311143 in words is "twelve trillion, three hundred twelve billion, two hundred seventy-four million, three hundred eleven thousand, one hundred forty-three".