21343662103 has 4 divisors (see below), whose sum is σ = 22467012760. Its totient is φ = 20220311448.

The previous prime is 21343662101. The next prime is 21343662127. The reversal of 21343662103 is 30126634312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21343662103 - 2¹ = 21343662101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21343662101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561675300 + ... + 561675337.

It is an arithmetic number, because the mean of its divisors is an integer number (5616753190).

Almost surely, 2^21343662103 is an apocalyptic number.

21343662103 is a deficient number, since it is larger than the sum of its proper divisors (1123350657).

21343662103 is a wasteful number, since it uses less digits than its factorization.

21343662103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123350656.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 21343662103 in words is "twenty-one billion, three hundred forty-three million, six hundred sixty-two thousand, one hundred three".