12310143 has 4 divisors (see below), whose sum is σ = 16413528. Its totient is φ = 8206760.

The previous prime is 12310121. The next prime is 12310147. The reversal of 12310143 is 34101321.

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 12310143 - 2⁶ = 12310079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310147) 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, 2051688 + ... + 2051693.

It is an arithmetic number, because the mean of its divisors is an integer number (4103382).

Almost surely, 2^12310143 is an apocalyptic number.

12310143 is a deficient number, since it is larger than the sum of its proper divisors (4103385).

12310143 is an equidigital number, since it uses as much as digits as its factorization.

12310143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103384.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12310143 is about 3508.5813372359. The cubic root of 12310143 is about 230.8984580229.

Adding to 12310143 its reverse (34101321), we get a palindrome (46411464).

The spelling of 12310143 in words is "twelve million, three hundred ten thousand, one hundred forty-three".