12400303143 has 4 divisors (see below), whose sum is σ = 16533737528. Its totient is φ = 8266868760.

The previous prime is 12400303129. The next prime is 12400303159. The reversal of 12400303143 is 34130300421.

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

It is not a de Polignac number, because 12400303143 - 2⁶ = 12400303079 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 (12400302143) 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, 2066717188 + ... + 2066717193.

It is an arithmetic number, because the mean of its divisors is an integer number (4133434382).

Almost surely, 2^12400303143 is an apocalyptic number.

12400303143 is a deficient number, since it is larger than the sum of its proper divisors (4133434385).

12400303143 is an equidigital number, since it uses as much as digits as its factorization.

12400303143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133434384.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12400303143 its reverse (34130300421), we get a palindrome (46530603564).

The spelling of 12400303143 in words is "twelve billion, four hundred million, three hundred three thousand, one hundred forty-three".