21030002302323 has 16 divisors (see below), whose sum is σ = 32068237669376. Its totient is φ = 12008699219520.

The previous prime is 21030002302321. The next prime is 21030002302339. The reversal of 21030002302323 is 32320320003012.

It is not a de Polignac number, because 21030002302323 - 2¹ = 21030002302321 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21030002302323.

It is not an unprimeable number, because it can be changed into a prime (21030002302321) 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, 351842458 + ... + 351902223.

It is an arithmetic number, because the mean of its divisors is an integer number (2004264854336).

Almost surely, 2^{21030002302323} is an apocalyptic number.

21030002302323 is a deficient number, since it is larger than the sum of its proper divisors (11038235367053).

21030002302323 is a wasteful number, since it uses less digits than its factorization.

21030002302323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703746114.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21030002302323 its reverse (32320320003012), we get a palindrome (53350322305335).

The spelling of 21030002302323 in words is "twenty-one trillion, thirty billion, two million, three hundred two thousand, three hundred twenty-three".