21343332101 has 16 divisors (see below), whose sum is σ = 27174537600. Its totient is φ = 16304718528.

The previous prime is 21343332097. The next prime is 21343332113. The reversal of 21343332101 is 10123334312.

It is not a de Polignac number, because 21343332101 - 2² = 21343332097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343332191) 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, 4041191 + ... + 4046468.

It is an arithmetic number, because the mean of its divisors is an integer number (1698408600).

Almost surely, 2^21343332101 is an apocalyptic number.

It is an amenable number.

21343332101 is a deficient number, since it is larger than the sum of its proper divisors (5831205499).

21343332101 is a wasteful number, since it uses less digits than its factorization.

21343332101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087708.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21343332101 its reverse (10123334312), we get a palindrome (31466666413).

The spelling of 21343332101 in words is "twenty-one billion, three hundred forty-three million, three hundred thirty-two thousand, one hundred one".