21321231120310 has 32 divisors (see below), whose sum is σ = 41876794713600. Its totient is φ = 7751387921760.

The previous prime is 21321231120289. The next prime is 21321231120323. The reversal of 21321231120310 is 1302113212312.

It is a super-2 number, since 2×21321231120310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 21858430 + ... + 22813009.

It is an arithmetic number, because the mean of its divisors is an integer number (1308649834800).

Almost surely, 2^{21321231120310} is an apocalyptic number.

21321231120310 is a deficient number, since it is larger than the sum of its proper divisors (20555563593290).

21321231120310 is a wasteful number, since it uses less digits than its factorization.

21321231120310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44675796.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21321231120310 its reverse (1302113212312), we get a palindrome (22623344332622).

The spelling of 21321231120310 in words is "twenty-one trillion, three hundred twenty-one billion, two hundred thirty-one million, one hundred twenty thousand, three hundred ten".