142000232421 has 8 divisors (see below), whose sum is σ = 189827988480. Its totient is φ = 94419648992.

The previous prime is 142000232419. The next prime is 142000232447. The reversal of 142000232421 is 124232000241.

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 142000232421 - 2¹ = 142000232419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142000232401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61791816 + ... + 61794113.

It is an arithmetic number, because the mean of its divisors is an integer number (23728498560).

Almost surely, 2^142000232421 is an apocalyptic number.

It is an amenable number.

142000232421 is a deficient number, since it is larger than the sum of its proper divisors (47827756059).

142000232421 is a wasteful number, since it uses less digits than its factorization.

142000232421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123586315.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 142000232421 its reverse (124232000241), we get a palindrome (266232232662).

The spelling of 142000232421 in words is "one hundred forty-two billion, two hundred thirty-two thousand, four hundred twenty-one".