431340031 has 8 divisors (see below), whose sum is σ = 456943680. Its totient is φ = 405762048.

The previous prime is 431339977. The next prime is 431340047. The reversal of 431340031 is 130043134.

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

It is a cyclic number.

It is not a de Polignac number, because 431340031 - 2¹¹ = 431337983 is a prime.

It is a super-2 number, since 2×431340031² = 372108444686161922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431339990 and 431340008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431340331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36415 + ... + 46783.

It is an arithmetic number, because the mean of its divisors is an integer number (57117960).

Almost surely, 2^431340031 is an apocalyptic number.

431340031 is a deficient number, since it is larger than the sum of its proper divisors (25603649).

431340031 is a wasteful number, since it uses less digits than its factorization.

431340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12833.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 431340031 is about 20768.7272359189. The cubic root of 431340031 is about 755.5674759421.

Adding to 431340031 its reverse (130043134), we get a palindrome (561383165).

It can be divided in two parts, 4313 and 40031, that added together give a palindrome (44344).

The spelling of 431340031 in words is "four hundred thirty-one million, three hundred forty thousand, thirty-one".