20340203234 has 8 divisors (see below), whose sum is σ = 32857251420. Its totient is φ = 9387786096.

The previous prime is 20340203167. The next prime is 20340203239. The reversal of 20340203234 is 43230204302.

It can be written as a sum of positive squares in 2 ways, for example, as 17568707209 + 2771496025 = 132547^2 + 52645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20340203239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391157729 + ... + 391157780.

Almost surely, 2^20340203234 is an apocalyptic number.

20340203234 is a deficient number, since it is larger than the sum of its proper divisors (12517048186).

20340203234 is a wasteful number, since it uses less digits than its factorization.

20340203234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782315524.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20340203234 its reverse (43230204302), we get a palindrome (63570407536).

The spelling of 20340203234 in words is "twenty billion, three hundred forty million, two hundred three thousand, two hundred thirty-four".