142422428703 has 4 divisors (see below), whose sum is σ = 189896571608. Its totient is φ = 94948285800.

The previous prime is 142422428647. The next prime is 142422428723. The reversal of 142422428703 is 307824224241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 307824224241 = 3 ⋅102608074747.

It is a de Polignac number, because none of the positive numbers 2^k-142422428703 is a prime.

It is a super-2 number, since 2×142422428703² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142422428723) 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, 23737071448 + ... + 23737071453.

It is an arithmetic number, because the mean of its divisors is an integer number (47474142902).

Almost surely, 2^142422428703 is an apocalyptic number.

142422428703 is a deficient number, since it is larger than the sum of its proper divisors (47474142905).

142422428703 is an equidigital number, since it uses as much as digits as its factorization.

142422428703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47474142904.

The product of its (nonzero) digits is 172032, while the sum is 39.

The spelling of 142422428703 in words is "one hundred forty-two billion, four hundred twenty-two million, four hundred twenty-eight thousand, seven hundred three".