21301163023 has 8 divisors (see below), whose sum is σ = 24345701280. Its totient is φ = 18257003520.

The previous prime is 21301162997. The next prime is 21301163041. The reversal of 21301163023 is 32036110312.

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

It is not a de Polignac number, because 21301163023 - 2²⁵ = 21267608591 is a prime.

It is a super-2 number, since 2×21301163023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21301162985 and 21301163003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301163053) 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, 38283 + ... + 209923.

It is an arithmetic number, because the mean of its divisors is an integer number (3043212660).

Almost surely, 2^21301163023 is an apocalyptic number.

21301163023 is a deficient number, since it is larger than the sum of its proper divisors (3044538257).

21301163023 is a wasteful number, since it uses less digits than its factorization.

21301163023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189377.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21301163023 its reverse (32036110312), we get a palindrome (53337273335).

The spelling of 21301163023 in words is "twenty-one billion, three hundred one million, one hundred sixty-three thousand, twenty-three".