431142140242 has 8 divisors (see below), whose sum is σ = 705505320432. Its totient is φ = 195973700100.

The previous prime is 431142140227. The next prime is 431142140291. The reversal of 431142140242 is 242041241134.

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

It is a self number, because there is not a number n which added to its sum of digits gives 431142140242.

It is an unprimeable number.

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, 9798684984 + ... + 9798685027.

It is an arithmetic number, because the mean of its divisors is an integer number (88188165054).

Almost surely, 2^431142140242 is an apocalyptic number.

431142140242 is a deficient number, since it is larger than the sum of its proper divisors (274363180190).

431142140242 is a wasteful number, since it uses less digits than its factorization.

431142140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19597370024.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 431142140242 its reverse (242041241134), we get a palindrome (673183381376).

The spelling of 431142140242 in words is "four hundred thirty-one billion, one hundred forty-two million, one hundred forty thousand, two hundred forty-two".