21333331133323 has 32 divisors (see below), whose sum is σ = 23715580921344. Its totient is φ = 19187243460000.

The previous prime is 21333331133293. The next prime is 21333331133327. The reversal of 21333331133323 is 32333113333312.

It is not a de Polignac number, because 21333331133323 - 2¹³ = 21333331125131 is a prime.

It is a super-2 number, since 2×21333331133323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333331133327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144010713 + ... + 144158773.

It is an arithmetic number, because the mean of its divisors is an integer number (741111903792).

Almost surely, 2^{21333331133323} is an apocalyptic number.

21333331133323 is a deficient number, since it is larger than the sum of its proper divisors (2382249788021).

21333331133323 is a wasteful number, since it uses less digits than its factorization.

21333331133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149248 (or 149226 counting only the distinct ones).

The product of its digits is 78732, while the sum is 34.

Adding to 21333331133323 its reverse (32333113333312), we get a palindrome (53666444466635).

The spelling of 21333331133323 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred thirty-one million, one hundred thirty-three thousand, three hundred twenty-three".