21323303103323 has 16 divisors (see below), whose sum is σ = 23611086233280. Its totient is φ = 19129237312896.

The previous prime is 21323303103317. The next prime is 21323303103329. The reversal of 21323303103323 is 32330130332312.

It is an interprime number because it is at equal distance from previous prime (21323303103317) and next prime (21323303103329).

It is a cyclic number.

It is not a de Polignac number, because 21323303103323 - 2⁶ = 21323303103259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21323303103329) 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, 24852503 + ... + 25696176.

It is an arithmetic number, because the mean of its divisors is an integer number (1475692889580).

Almost surely, 2^{21323303103323} is an apocalyptic number.

21323303103323 is a deficient number, since it is larger than the sum of its proper divisors (2287783129957).

21323303103323 is a wasteful number, since it uses less digits than its factorization.

21323303103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50549606.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 21323303103323 its reverse (32330130332312), we get a palindrome (53653433435635).

The spelling of 21323303103323 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred three million, one hundred three thousand, three hundred twenty-three".