21330310003023 has 16 divisors (see below), whose sum is σ = 32514859710720. Its totient is φ = 12184424754816.

The previous prime is 21330310003007. The next prime is 21330310003027. The reversal of 21330310003023 is 32030001303312.

It is not a de Polignac number, because 21330310003023 - 2⁴ = 21330310003007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330310003027) 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, 180098490 + ... + 180216887.

It is an arithmetic number, because the mean of its divisors is an integer number (2032178731920).

Almost surely, 2^{21330310003023} is an apocalyptic number.

21330310003023 is a deficient number, since it is larger than the sum of its proper divisors (11184549707697).

21330310003023 is a wasteful number, since it uses less digits than its factorization.

21330310003023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360318206.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 21330310003023 its reverse (32030001303312), we get a palindrome (53360311306335).

The spelling of 21330310003023 in words is "twenty-one trillion, three hundred thirty billion, three hundred ten million, three thousand, twenty-three".