31724424041 has 8 divisors (see below), whose sum is σ = 31923180744. Its totient is φ = 31525925760.

The previous prime is 31724424007. The next prime is 31724424071. The reversal of 31724424041 is 14042442713.

It can be written as a sum of positive squares in 4 ways, for example, as 32947600 + 31691476441 = 5740^2 + 178021^2 .

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 31724424041 - 2⁶ = 31724423977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31724423989 and 31724424007.

It is not an unprimeable number, because it can be changed into a prime (31724424071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184685 + ... + 312341.

It is an arithmetic number, because the mean of its divisors is an integer number (3990397593).

Almost surely, 2^31724424041 is an apocalyptic number.

It is an amenable number.

31724424041 is a deficient number, since it is larger than the sum of its proper divisors (198756703).

31724424041 is a wasteful number, since it uses less digits than its factorization.

31724424041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129211.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 31724424041 its reverse (14042442713), we get a palindrome (45766866754).

The spelling of 31724424041 in words is "thirty-one billion, seven hundred twenty-four million, four hundred twenty-four thousand, forty-one".