21353464333142 has 32 divisors (see below), whose sum is σ = 33170473949184. Its totient is φ = 10303072668000.

The previous prime is 21353464333141. The next prime is 21353464333147. The reversal of 21353464333142 is 24133346435312.

It is a junction number, because it is equal to n+sod(n) for n = 21353464333093 and 21353464333102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21353464333141) by changing a digit.

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, 1424267 + ... + 6688457.

It is an arithmetic number, because the mean of its divisors is an integer number (1036577310912).

Almost surely, 2^{21353464333142} is an apocalyptic number.

21353464333142 is a deficient number, since it is larger than the sum of its proper divisors (11817009616042).

21353464333142 is a wasteful number, since it uses less digits than its factorization.

21353464333142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264804.

The product of its digits is 1866240, while the sum is 44.

The spelling of 21353464333142 in words is "twenty-one trillion, three hundred fifty-three billion, four hundred sixty-four million, three hundred thirty-three thousand, one hundred forty-two".