12142230143 has 4 divisors (see below), whose sum is σ = 12146698560. Its totient is φ = 12137761728.

The previous prime is 12142230101. The next prime is 12142230151. The reversal of 12142230143 is 34103224121.

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 12142230143 - 2³² = 7847262847 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 (12142230043) 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, 2230130 + ... + 2235567.

It is an arithmetic number, because the mean of its divisors is an integer number (3036674640).

Almost surely, 2^12142230143 is an apocalyptic number.

12142230143 is a deficient number, since it is larger than the sum of its proper divisors (4468417).

12142230143 is an equidigital number, since it uses as much as digits as its factorization.

12142230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468416.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12142230143 its reverse (34103224121), we get a palindrome (46245454264).

The spelling of 12142230143 in words is "twelve billion, one hundred forty-two million, two hundred thirty thousand, one hundred forty-three".