21333334332043 has 16 divisors (see below), whose sum is σ = 21843911268864. Its totient is φ = 20825127591840.

The previous prime is 21333334332001. The next prime is 21333334332047. The reversal of 21333334332043 is 34023343333312.

It is a cyclic number.

It is not a de Polignac number, because 21333334332043 - 2⁹ = 21333334331531 is a prime.

It is a super-2 number, since 2×21333334332043² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21333334331993 and 21333334332011.

It is not an unprimeable number, because it can be changed into a prime (21333334332047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267660828 + ... + 267740518.

It is an arithmetic number, because the mean of its divisors is an integer number (1365244454304).

Almost surely, 2^{21333334332043} is an apocalyptic number.

21333334332043 is a deficient number, since it is larger than the sum of its proper divisors (510576936821).

21333334332043 is a wasteful number, since it uses less digits than its factorization.

21333334332043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94482.

The product of its (nonzero) digits is 419904, while the sum is 37.

Adding to 21333334332043 its reverse (34023343333312), we get a palindrome (55356677665355).

The spelling of 21333334332043 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred thirty-four million, three hundred thirty-two thousand, forty-three".