431113324681 has 4 divisors (see below), whose sum is σ = 464275888132. Its totient is φ = 397950761232.

The previous prime is 431113324673. The next prime is 431113324709. The reversal of 431113324681 is 186423311134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186423311134 = 2 ⋅93211655567.

It can be written as a sum of positive squares in 2 ways, for example, as 67644207225 + 363469117456 = 260085^2 + 602884^2 .

It is a cyclic number.

It is not a de Polignac number, because 431113324681 - 2³ = 431113324673 is a prime.

It is a super-2 number, since 2×431113324681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 431113324681.

It is not an unprimeable number, because it can be changed into a prime (431113322681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16581281706 + ... + 16581281731.

It is an arithmetic number, because the mean of its divisors is an integer number (116068972033).

Almost surely, 2^431113324681 is an apocalyptic number.

It is an amenable number.

431113324681 is a deficient number, since it is larger than the sum of its proper divisors (33162563451).

431113324681 is a wasteful number, since it uses less digits than its factorization.

431113324681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33162563450.

The product of its digits is 41472, while the sum is 37.

The spelling of 431113324681 in words is "four hundred thirty-one billion, one hundred thirteen million, three hundred twenty-four thousand, six hundred eighty-one".