431144413442 has 4 divisors (see below), whose sum is σ = 646716620166. Its totient is φ = 215572206720.

The previous prime is 431144413433. The next prime is 431144413457. The reversal of 431144413442 is 244314441134.

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., 407134601041 + 24009812401 = 638071^2 + 154951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107786103359 + ... + 107786103362.

Almost surely, 2^431144413442 is an apocalyptic number.

431144413442 is a deficient number, since it is larger than the sum of its proper divisors (215572206724).

431144413442 is a wasteful number, since it uses less digits than its factorization.

431144413442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215572206723.

The product of its digits is 73728, while the sum is 35.

Adding to 431144413442 its reverse (244314441134), we get a palindrome (675458854576).

The spelling of 431144413442 in words is "four hundred thirty-one billion, one hundred forty-four million, four hundred thirteen thousand, four hundred forty-two".