142204434503 has 4 divisors (see below), whose sum is σ = 142273703208. Its totient is φ = 142135165800.

The previous prime is 142204434467. The next prime is 142204434509. The reversal of 142204434503 is 305434402241.

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

It is a cyclic number.

It is not a de Polignac number, because 142204434503 - 2¹⁸ = 142204172359 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 142204434503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142204434509) 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, 34631273 + ... + 34635378.

It is an arithmetic number, because the mean of its divisors is an integer number (35568425802).

Almost surely, 2^142204434503 is an apocalyptic number.

142204434503 is a deficient number, since it is larger than the sum of its proper divisors (69268705).

142204434503 is an equidigital number, since it uses as much as digits as its factorization.

142204434503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69268704.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 142204434503 its reverse (305434402241), we get a palindrome (447638836744).

The spelling of 142204434503 in words is "one hundred forty-two billion, two hundred four million, four hundred thirty-four thousand, five hundred three".