31240443241005 has 16 divisors (see below), whose sum is σ = 50500015468224. Its totient is φ = 16489800967680.

The previous prime is 31240443240961. The next prime is 31240443241019. The reversal of 31240443241005 is 50014234404213.

It is not a de Polignac number, because 31240443241005 - 2⁸ = 31240443240749 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 10735546051 + ... + 10735548960.

It is an arithmetic number, because the mean of its divisors is an integer number (3156250966764).

Almost surely, 2^{31240443241005} is an apocalyptic number.

It is an amenable number.

31240443241005 is a deficient number, since it is larger than the sum of its proper divisors (19259572227219).

31240443241005 is a wasteful number, since it uses less digits than its factorization.

31240443241005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21471095116.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 31240443241005 its reverse (50014234404213), we get a palindrome (81254677645218).

The spelling of 31240443241005 in words is "thirty-one trillion, two hundred forty billion, four hundred forty-three million, two hundred forty-one thousand, five".