142440423203 has 4 divisors (see below), whose sum is σ = 153397378848. Its totient is φ = 131483467560.

The previous prime is 142440423197. The next prime is 142440423221. The reversal of 142440423203 is 302324044241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302324044241 = 491 ⋅615731251.

It is a cyclic number.

It is not a de Polignac number, because 142440423203 - 2⁸ = 142440422947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142140423203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5478477803 + ... + 5478477828.

It is an arithmetic number, because the mean of its divisors is an integer number (38349344712).

Almost surely, 2^142440423203 is an apocalyptic number.

142440423203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142440423203 is a deficient number, since it is larger than the sum of its proper divisors (10956955645).

142440423203 is a wasteful number, since it uses less digits than its factorization.

142440423203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10956955644.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 142440423203 its reverse (302324044241), we get a palindrome (444764467444).

The spelling of 142440423203 in words is "one hundred forty-two billion, four hundred forty million, four hundred twenty-three thousand, two hundred three".