20340222243 has 16 divisors (see below), whose sum is σ = 29614032000. Its totient is φ = 12315634880.

The previous prime is 20340222229. The next prime is 20340222281. The reversal of 20340222243 is 34222204302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20340222243 - 2⁶ = 20340222179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20340222143) 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, 259173 + ... + 328406.

It is an arithmetic number, because the mean of its divisors is an integer number (1850877000).

Almost surely, 2^20340222243 is an apocalyptic number.

20340222243 is a deficient number, since it is larger than the sum of its proper divisors (9273809757).

20340222243 is a wasteful number, since it uses less digits than its factorization.

20340222243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588642.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20340222243 its reverse (34222204302), we get a palindrome (54562426545).

The spelling of 20340222243 in words is "twenty billion, three hundred forty million, two hundred twenty-two thousand, two hundred forty-three".