142443044021 has 8 divisors (see below), whose sum is σ = 148697169984. Its totient is φ = 136193997280.

The previous prime is 142443044017. The next prime is 142443044027. The reversal of 142443044021 is 120440344241.

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

It is a cyclic number.

It is not a de Polignac number, because 142443044021 - 2² = 142443044017 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 (142443044027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212431 + ... + 1324716.

It is an arithmetic number, because the mean of its divisors is an integer number (18587146248).

Almost surely, 2^142443044021 is an apocalyptic number.

It is an amenable number.

142443044021 is a deficient number, since it is larger than the sum of its proper divisors (6254125963).

142443044021 is a wasteful number, since it uses less digits than its factorization.

142443044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539611.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 142443044021 its reverse (120440344241), we get a palindrome (262883388262).

The spelling of 142443044021 in words is "one hundred forty-two billion, four hundred forty-three million, forty-four thousand, twenty-one".