21303033102323 has 16 divisors (see below), whose sum is σ = 24505802711040. Its totient is φ = 18140255544096.

The previous prime is 21303033102319. The next prime is 21303033102331. The reversal of 21303033102323 is 32320133030312.

It is a happy number.

It is not a de Polignac number, because 21303033102323 - 2² = 21303033102319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21303033102292 and 21303033102301.

It is not an unprimeable number, because it can be changed into a prime (21303033102823) 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, 3001811 + ... + 7184492.

It is an arithmetic number, because the mean of its divisors is an integer number (1531612669440).

Almost surely, 2^{21303033102323} is an apocalyptic number.

21303033102323 is a deficient number, since it is larger than the sum of its proper divisors (3202769608717).

21303033102323 is a wasteful number, since it uses less digits than its factorization.

21303033102323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10188266.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21303033102323 its reverse (32320133030312), we get a palindrome (53623166132635).

The spelling of 21303033102323 in words is "twenty-one trillion, three hundred three billion, thirty-three million, one hundred two thousand, three hundred twenty-three".