21131331014 has 8 divisors (see below), whose sum is σ = 31774496520. Its totient is φ = 10539832176.

The previous prime is 21131330963. The next prime is 21131331073. The reversal of 21131331014 is 41013313112.

21131331014 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12915644 + ... + 12917279.

It is an arithmetic number, because the mean of its divisors is an integer number (3971812065).

Almost surely, 2^21131331014 is an apocalyptic number.

21131331014 is a deficient number, since it is larger than the sum of its proper divisors (10643165506).

21131331014 is a wasteful number, since it uses less digits than its factorization.

21131331014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25833334.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21131331014 its reverse (41013313112), we get a palindrome (62144644126).

The spelling of 21131331014 in words is "twenty-one billion, one hundred thirty-one million, three hundred thirty-one thousand, fourteen".