142432440403 has 8 divisors (see below), whose sum is σ = 155390616576. Its totient is φ = 129475893000.

The previous prime is 142432440391. The next prime is 142432440473. The reversal of 142432440403 is 304044234241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142432440403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142432440473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220623 + ... + 577528.

It is an arithmetic number, because the mean of its divisors is an integer number (19423827072).

Almost surely, 2^142432440403 is an apocalyptic number.

142432440403 is a deficient number, since it is larger than the sum of its proper divisors (12958176173).

142432440403 is a wasteful number, since it uses less digits than its factorization.

142432440403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814385.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 142432440403 its reverse (304044234241), we get a palindrome (446476674644).

The spelling of 142432440403 in words is "one hundred forty-two billion, four hundred thirty-two million, four hundred forty thousand, four hundred three".