21102343301 has 16 divisors (see below), whose sum is σ = 23815524096. Its totient is φ = 18552141696.

The previous prime is 21102343247. The next prime is 21102343303. The reversal of 21102343301 is 10334320112.

It is a cyclic number.

It is not a de Polignac number, because 21102343301 - 2¹⁸ = 21102081157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102343303) 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, 81785 + ... + 221118.

It is an arithmetic number, because the mean of its divisors is an integer number (1488470256).

Almost surely, 2^21102343301 is an apocalyptic number.

It is an amenable number.

21102343301 is a deficient number, since it is larger than the sum of its proper divisors (2713180795).

21102343301 is a wasteful number, since it uses less digits than its factorization.

21102343301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303172.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21102343301 its reverse (10334320112), we get a palindrome (31436663413).

The spelling of 21102343301 in words is "twenty-one billion, one hundred two million, three hundred forty-three thousand, three hundred one".