142430000421 has 4 divisors (see below), whose sum is σ = 189906667232. Its totient is φ = 94953333612.

The previous prime is 142430000417. The next prime is 142430000441. The reversal of 142430000421 is 124000034241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124000034241 = 3 ⋅41333344747.

It is not a de Polignac number, because 142430000421 - 2² = 142430000417 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 (142430000441) 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, 23738333401 + ... + 23738333406.

It is an arithmetic number, because the mean of its divisors is an integer number (47476666808).

Almost surely, 2^142430000421 is an apocalyptic number.

It is an amenable number.

142430000421 is a deficient number, since it is larger than the sum of its proper divisors (47476666811).

142430000421 is an equidigital number, since it uses as much as digits as its factorization.

142430000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47476666810.

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

Adding to 142430000421 its reverse (124000034241), we get a palindrome (266430034662).

The spelling of 142430000421 in words is "one hundred forty-two billion, four hundred thirty million, four hundred twenty-one", and thus it is an aban number.