21303202131210 has 64 divisors (see below), whose sum is σ = 54252626529024. Its totient is φ = 5335087948800.

The previous prime is 21303202131161. The next prime is 21303202131251. The reversal of 21303202131210 is 1213120230312.

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 31 ways as a sum of consecutive naturals, for example, 45069646 + ... + 45539865.

It is an arithmetic number, because the mean of its divisors is an integer number (847697289516).

Almost surely, 2^{21303202131210} is an apocalyptic number.

21303202131210 is an abundant number, since it is smaller than the sum of its proper divisors (32949424397814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303202131210 is a wasteful number, since it uses less digits than its factorization.

21303202131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90609999.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21303202131210 its reverse (1213120230312), we get a palindrome (22516322361522).

The spelling of 21303202131210 in words is "twenty-one trillion, three hundred three billion, two hundred two million, one hundred thirty-one thousand, two hundred ten".