21423303343310 has 16 divisors (see below), whose sum is σ = 42067577474352. Its totient is φ = 7790292124800.

The previous prime is 21423303343291. The next prime is 21423303343319. The reversal of 21423303343310 is 1334330332412.

It is a super-2 number, since 2×21423303343310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21423303343319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97378651451 + ... + 97378651670.

It is an arithmetic number, because the mean of its divisors is an integer number (2629223592147).

Almost surely, 2^{21423303343310} is an apocalyptic number.

21423303343310 is a deficient number, since it is larger than the sum of its proper divisors (20644274131042).

21423303343310 is a wasteful number, since it uses less digits than its factorization.

21423303343310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194757303139.

The product of its (nonzero) digits is 46656, while the sum is 32.

Adding to 21423303343310 its reverse (1334330332412), we get a palindrome (22757633675722).

The spelling of 21423303343310 in words is "twenty-one trillion, four hundred twenty-three billion, three hundred three million, three hundred forty-three thousand, three hundred ten".