142430221034434 has 4 divisors (see below), whose sum is σ = 213645331551654. Its totient is φ = 71215110517216.

The previous prime is 142430221034371. The next prime is 142430221034459. The reversal of 142430221034434 is 434430122034241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 114104376261225 + 28325844773209 = 10681965^2 + 5322203^2 .

It is a super-2 number, since 2×142430221034434² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142430221034393 and 142430221034402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35607555258607 + ... + 35607555258610.

Almost surely, 2^{142430221034434} is an apocalyptic number.

142430221034434 is a deficient number, since it is larger than the sum of its proper divisors (71215110517220).

142430221034434 is an equidigital number, since it uses as much as digits as its factorization.

142430221034434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71215110517219.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 142430221034434 its reverse (434430122034241), we get a palindrome (576860343068675).

The spelling of 142430221034434 in words is "one hundred forty-two trillion, four hundred thirty billion, two hundred twenty-one million, thirty-four thousand, four hundred thirty-four".