21713314743 has 12 divisors (see below), whose sum is σ = 31668179920. Its totient is φ = 14335003296.

The previous prime is 21713314729. The next prime is 21713314747. The reversal of 21713314743 is 34741331712.

It is not a de Polignac number, because 21713314743 - 2¹⁴ = 21713298359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21713314698 and 21713314707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21713314747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11710678 + ... + 11712531.

Almost surely, 2^21713314743 is an apocalyptic number.

21713314743 is a deficient number, since it is larger than the sum of its proper divisors (9954865177).

21713314743 is a wasteful number, since it uses less digits than its factorization.

21713314743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23423318 (or 23423315 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The spelling of 21713314743 in words is "twenty-one billion, seven hundred thirteen million, three hundred fourteen thousand, seven hundred forty-three".