31066641330643 has 8 divisors (see below), whose sum is σ = 31086118965888. Its totient is φ = 31047168345984.

The previous prime is 31066641330631. The next prime is 31066641330653. The reversal of 31066641330643 is 34603314666013.

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 31066641330643 - 2²¹ = 31066639233491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31066641330593 and 31066641330602.

It is not an unprimeable number, because it can be changed into a prime (31066641330623) 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, 12250305 + ... + 14567197.

It is an arithmetic number, because the mean of its divisors is an integer number (3885764870736).

Almost surely, 2^{31066641330643} is an apocalyptic number.

31066641330643 is a deficient number, since it is larger than the sum of its proper divisors (19477635245).

31066641330643 is a wasteful number, since it uses less digits than its factorization.

31066641330643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325293.

The product of its (nonzero) digits is 1679616, while the sum is 46.

Adding to 31066641330643 its reverse (34603314666013), we get a palindrome (65669955996656).

The spelling of 31066641330643 in words is "thirty-one trillion, sixty-six billion, six hundred forty-one million, three hundred thirty thousand, six hundred forty-three".