21131312230010 has 8 divisors (see below), whose sum is σ = 38036362014036. Its totient is φ = 8452524892000.

The previous prime is 21131312230001. The next prime is 21131312230079. The reversal of 21131312230010 is 1003221313112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19630420168129 + 1500892061881 = 4430623^2 + 1225109^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 1056565611491 + ... + 1056565611510.

Almost surely, 2^{21131312230010} is an apocalyptic number.

21131312230010 is a deficient number, since it is larger than the sum of its proper divisors (16905049784026).

21131312230010 is a wasteful number, since it uses less digits than its factorization.

21131312230010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113131223008.

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

Adding to 21131312230010 its reverse (1003221313112), we get a palindrome (22134533543122).

The spelling of 21131312230010 in words is "twenty-one trillion, one hundred thirty-one billion, three hundred twelve million, two hundred thirty thousand, ten".