21300001100023 has 16 divisors (see below), whose sum is σ = 21755690035200. Its totient is φ = 20847506209920.

The previous prime is 21300001099997. The next prime is 21300001100029. The reversal of 21300001100023 is 32000110000312.

It is not a de Polignac number, because 21300001100023 - 2⁹ = 21300001099511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21300001099976 and 21300001100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300001100029) 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, 65287338 + ... + 65612776.

It is an arithmetic number, because the mean of its divisors is an integer number (1359730627200).

Almost surely, 2^{21300001100023} is an apocalyptic number.

21300001100023 is a deficient number, since it is larger than the sum of its proper divisors (455688935177).

21300001100023 is a wasteful number, since it uses less digits than its factorization.

21300001100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330342.

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

Adding to 21300001100023 its reverse (32000110000312), we get a palindrome (53300111100335).

The spelling of 21300001100023 in words is "twenty-one trillion, three hundred billion, one million, one hundred thousand, twenty-three".