21303310232023 has 8 divisors (see below), whose sum is σ = 22424653768320. Its totient is φ = 20181978363960.

The previous prime is 21303310231999. The next prime is 21303310232047. The reversal of 21303310232023 is 32023201330312.

It is an interprime number because it is at equal distance from previous prime (21303310231999) and next prime (21303310232047).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21303310232023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303319232023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962886 + ... + 6598012.

It is an arithmetic number, because the mean of its divisors is an integer number (2803081721040).

Almost surely, 2^{21303310232023} is an apocalyptic number.

21303310232023 is a deficient number, since it is larger than the sum of its proper divisors (1121343536297).

21303310232023 is a wasteful number, since it uses less digits than its factorization.

21303310232023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834117.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21303310232023 its reverse (32023201330312), we get a palindrome (53326511562335).

The spelling of 21303310232023 in words is "twenty-one trillion, three hundred three billion, three hundred ten million, two hundred thirty-two thousand, twenty-three".