21301120323 has 48 divisors (see below), whose sum is σ = 35790543360. Its totient is φ = 11956146048.

The previous prime is 21301120319. The next prime is 21301120327. The reversal of 21301120323 is 32302110312.

21301120323 is a `hidden beast` number, since 21 + 301 + 1 + 20 + 323 = 666.

It is an interprime number because it is at equal distance from previous prime (21301120319) and next prime (21301120327).

It is not a de Polignac number, because 21301120323 - 2² = 21301120319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21301120296 and 21301120305.

It is not an unprimeable number, because it can be changed into a prime (21301120327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1508311 + ... + 1522367.

It is an arithmetic number, because the mean of its divisors is an integer number (745636320).

Almost surely, 2^21301120323 is an apocalyptic number.

21301120323 is a deficient number, since it is larger than the sum of its proper divisors (14489423037).

21301120323 is a wasteful number, since it uses less digits than its factorization.

21301120323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14496 (or 14493 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21301120323 its reverse (32302110312), we get a palindrome (53603230635).

The spelling of 21301120323 in words is "twenty-one billion, three hundred one million, one hundred twenty thousand, three hundred twenty-three".