21302010023 has 8 divisors (see below), whose sum is σ = 24346976640. Its totient is φ = 18257499000.

The previous prime is 21302009969. The next prime is 21302010049. The reversal of 21302010023 is 32001020312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21302010023 - 2¹⁰ = 21302008999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302012023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7013 + ... + 206526.

It is an arithmetic number, because the mean of its divisors is an integer number (3043372080).

Almost surely, 2^21302010023 is an apocalyptic number.

21302010023 is a deficient number, since it is larger than the sum of its proper divisors (3044966617).

21302010023 is a wasteful number, since it uses less digits than its factorization.

21302010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227797.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21302010023 its reverse (32001020312), we get a palindrome (53303030335).

The spelling of 21302010023 in words is "twenty-one billion, three hundred two million, ten thousand, twenty-three".