21342324420324 has 24 divisors (see below), whose sum is σ = 55331952201120. Its totient is φ = 7114108140072.

The previous prime is 21342324420289. The next prime is 21342324420371. The reversal of 21342324420324 is 42302442324312.

21342324420324 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 2 + 324 + 4 + 2 + 0 + 324 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 7 ways as a sum of consecutive naturals, for example, 98807057394 + ... + 98807057609.

It is an arithmetic number, because the mean of its divisors is an integer number (2305498008380).

Almost surely, 2^{21342324420324} is an apocalyptic number.

It is an amenable number.

21342324420324 is an abundant number, since it is smaller than the sum of its proper divisors (33989627780796).

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

21342324420324 is a wasteful number, since it uses less digits than its factorization.

21342324420324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197614115016 (or 197614115008 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 21342324420324 its reverse (42302442324312), we get a palindrome (63644766744636).

It can be divided in two parts, 2134232 and 4420324, that added together give a palindrome (6554556).

The spelling of 21342324420324 in words is "twenty-one trillion, three hundred forty-two billion, three hundred twenty-four million, four hundred twenty thousand, three hundred twenty-four".