212131050631 has 8 divisors (see below), whose sum is σ = 212275684800. Its totient is φ = 211986461280.

The previous prime is 212131050601. The next prime is 212131050697. The reversal of 212131050631 is 136050131212.

It is a happy number.

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 212131050631 - 2¹⁵ = 212131017863 is a prime.

It is a super-2 number, since 2×212131050631² (a number of 23 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 = 212131050596 and 212131050605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212131050601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19072690 + ... + 19083808.

It is an arithmetic number, because the mean of its divisors is an integer number (26534460600).

Almost surely, 2^212131050631 is an apocalyptic number.

212131050631 is a deficient number, since it is larger than the sum of its proper divisors (144634169).

212131050631 is a wasteful number, since it uses less digits than its factorization.

212131050631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22409.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 212131050631 its reverse (136050131212), we get a palindrome (348181181843).

The spelling of 212131050631 in words is "two hundred twelve billion, one hundred thirty-one million, fifty thousand, six hundred thirty-one".