12020143142 has 8 divisors (see below), whose sum is σ = 20605959696. Its totient is φ = 5151489912.

The previous prime is 12020143129. The next prime is 12020143153. The reversal of 12020143142 is 24134102021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429290813 + ... + 429290840.

It is an arithmetic number, because the mean of its divisors is an integer number (2575744962).

Almost surely, 2^12020143142 is an apocalyptic number.

12020143142 is a deficient number, since it is larger than the sum of its proper divisors (8585816554).

12020143142 is an equidigital number, since it uses as much as digits as its factorization.

12020143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858581662.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12020143142 its reverse (24134102021), we get a palindrome (36154245163).

The spelling of 12020143142 in words is "twelve billion, twenty million, one hundred forty-three thousand, one hundred forty-two".