21131310010 has 16 divisors (see below), whose sum is σ = 38326714272. Its totient is φ = 8388000400.

The previous prime is 21131309993. The next prime is 21131310037. The reversal of 21131310010 is 1001313112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8064076 + ... + 8066695.

It is an arithmetic number, because the mean of its divisors is an integer number (2395419642).

Almost surely, 2^21131310010 is an apocalyptic number.

21131310010 is a deficient number, since it is larger than the sum of its proper divisors (17195404262).

21131310010 is a wasteful number, since it uses less digits than its factorization.

21131310010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16130909.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21131310010 its reverse (1001313112), we get a palindrome (22132623122).

The spelling of 21131310010 in words is "twenty-one billion, one hundred thirty-one million, three hundred ten thousand, ten".