431261543412312 has 16 divisors (see below), whose sum is σ = 1078153858530840. Its totient is φ = 143753847804096.

The previous prime is 431261543412283. The next prime is 431261543412347. The reversal of 431261543412312 is 213214345162134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8984615487733 + ... + 8984615487780.

Almost surely, 2^{431261543412312} is an apocalyptic number.

It is an amenable number.

431261543412312 is an abundant number, since it is smaller than the sum of its proper divisors (646892315118528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431261543412312 is a wasteful number, since it uses less digits than its factorization.

431261543412312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17969230975522 (or 17969230975518 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

Adding to 431261543412312 its reverse (213214345162134), we get a palindrome (644475888574446).

The spelling of 431261543412312 in words is "four hundred thirty-one trillion, two hundred sixty-one billion, five hundred forty-three million, four hundred twelve thousand, three hundred twelve".