6631230031631 has 32 divisors (see below), whose sum is σ = 7045400494080. Its totient is φ = 6230992118400.

The previous prime is 6631230031627. The next prime is 6631230031663. The reversal of 6631230031631 is 1361300321366.

It is a cyclic number.

It is not a de Polignac number, because 6631230031631 - 2² = 6631230031627 is a prime.

It is a super-2 number, since 2×6631230031631² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6631230031591 and 6631230031600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631230031681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1032737801 + ... + 1032744221.

It is an arithmetic number, because the mean of its divisors is an integer number (220168765440).

Almost surely, 2^{6631230031631} is an apocalyptic number.

6631230031631 is a deficient number, since it is larger than the sum of its proper divisors (414170462449).

6631230031631 is a wasteful number, since it uses less digits than its factorization.

6631230031631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 34992, while the sum is 35.

Adding to 6631230031631 its reverse (1361300321366), we get a palindrome (7992530352997).

The spelling of 6631230031631 in words is "six trillion, six hundred thirty-one billion, two hundred thirty million, thirty-one thousand, six hundred thirty-one".