142034034421 has 4 divisors (see below), whose sum is σ = 142098509632. Its totient is φ = 141969559212.

The previous prime is 142034034413. The next prime is 142034034427. The reversal of 142034034421 is 124430430241.

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.

It is a cyclic number.

It is not a de Polignac number, because 142034034421 - 2³ = 142034034413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142034034421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142034034427) 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, 32234301 + ... + 32238706.

It is an arithmetic number, because the mean of its divisors is an integer number (35524627408).

Almost surely, 2^142034034421 is an apocalyptic number.

It is an amenable number.

142034034421 is a deficient number, since it is larger than the sum of its proper divisors (64475211).

142034034421 is an equidigital number, since it uses as much as digits as its factorization.

142034034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64475210.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 142034034421 its reverse (124430430241), we get a palindrome (266464464662).

The spelling of 142034034421 in words is "one hundred forty-two billion, thirty-four million, thirty-four thousand, four hundred twenty-one".