21343666630031 has 16 divisors (see below), whose sum is σ = 21523639957248. Its totient is φ = 21163957214400.

The previous prime is 21343666629953. The next prime is 21343666630051. The reversal of 21343666630031 is 13003666634312.

It is a cyclic number.

It is not a de Polignac number, because 21343666630031 - 2³⁰ = 21342592888207 is a prime.

It is a super-2 number, since 2×21343666630031² (a number of 27 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 (21343666630051) 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, 1713381155 + ... + 1713393611.

It is an arithmetic number, because the mean of its divisors is an integer number (1345227497328).

Almost surely, 2^{21343666630031} is an apocalyptic number.

21343666630031 is a deficient number, since it is larger than the sum of its proper divisors (179973327217).

21343666630031 is a wasteful number, since it uses less digits than its factorization.

21343666630031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902.

The product of its (nonzero) digits is 839808, while the sum is 44.

The spelling of 21343666630031 in words is "twenty-one trillion, three hundred forty-three billion, six hundred sixty-six million, six hundred thirty thousand, thirty-one".