12312430143 has 16 divisors (see below), whose sum is σ = 17699594976. Its totient is φ = 7568219520.

The previous prime is 12312430129. The next prime is 12312430181. The reversal of 12312430143 is 34103421321.

It is a happy number.

It is not a de Polignac number, because 12312430143 - 2¹⁴ = 12312413759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312440143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145788 + ... + 214193.

It is an arithmetic number, because the mean of its divisors is an integer number (1106224686).

Almost surely, 2^12312430143 is an apocalyptic number.

12312430143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12312430143 is a deficient number, since it is larger than the sum of its proper divisors (5387164833).

12312430143 is a wasteful number, since it uses less digits than its factorization.

12312430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360874.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12312430143 its reverse (34103421321), we get a palindrome (46415851464).

The spelling of 12312430143 in words is "twelve billion, three hundred twelve million, four hundred thirty thousand, one hundred forty-three".