21011321213310 has 32 divisors (see below), whose sum is σ = 50427605776032. Its totient is φ = 5602970672000.

The previous prime is 21011321213291. The next prime is 21011321213357. The reversal of 21011321213310 is 1331212311012.

It is a super-2 number, since 2×21011321213310² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 587560 + ... + 6509060.

It is an arithmetic number, because the mean of its divisors is an integer number (1575862680501).

Almost surely, 2^{21011321213310} is an apocalyptic number.

21011321213310 is an abundant number, since it is smaller than the sum of its proper divisors (29416284562722).

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

21011321213310 is a wasteful number, since it uses less digits than its factorization.

21011321213310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039788.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21011321213310 its reverse (1331212311012), we get a palindrome (22342533524322).

The spelling of 21011321213310 in words is "twenty-one trillion, eleven billion, three hundred twenty-one million, two hundred thirteen thousand, three hundred ten".