21023300101 has 16 divisors (see below), whose sum is σ = 22855106560. Its totient is φ = 19264670640.

The previous prime is 21023300083. The next prime is 21023300113. The reversal of 21023300101 is 10100332012.

It is a cyclic number.

It is not a de Polignac number, because 21023300101 - 2⁵ = 21023300069 is a prime.

It is a super-2 number, since 2×21023300101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21023300131) 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, 1339240 + ... + 1354846.

It is an arithmetic number, because the mean of its divisors is an integer number (1428444160).

Almost surely, 2^21023300101 is an apocalyptic number.

It is an amenable number.

21023300101 is a deficient number, since it is larger than the sum of its proper divisors (1831806459).

21023300101 is a wasteful number, since it uses less digits than its factorization.

21023300101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17944.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 21023300101 its reverse (10100332012), we get a palindrome (31123632113).

The spelling of 21023300101 in words is "twenty-one billion, twenty-three million, three hundred thousand, one hundred one".