431231542312 has 8 divisors (see below), whose sum is σ = 808559141850. Its totient is φ = 215615771152.

The previous prime is 431231542271. The next prime is 431231542349. The reversal of 431231542312 is 213245132134.

It can be written as a sum of positive squares in only one way, i.e., 260624544196 + 170606998116 = 510514^2 + 413046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 26951971387 + ... + 26951971402.

Almost surely, 2^431231542312 is an apocalyptic number.

It is an amenable number.

431231542312 is a deficient number, since it is larger than the sum of its proper divisors (377327599538).

431231542312 is a wasteful number, since it uses less digits than its factorization.

431231542312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53903942795 (or 53903942791 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

Adding to 431231542312 its reverse (213245132134), we get a palindrome (644476674446).

The spelling of 431231542312 in words is "four hundred thirty-one billion, two hundred thirty-one million, five hundred forty-two thousand, three hundred twelve".