20340345235 has 32 divisors (see below), whose sum is σ = 28887292800. Its totient is φ = 13452687360.

The previous prime is 20340345229. The next prime is 20340345271. The reversal of 20340345235 is 53254304302.

It is not a de Polignac number, because 20340345235 - 2⁷ = 20340345107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20340345197 and 20340345206.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014205 + ... + 1034065.

It is an arithmetic number, because the mean of its divisors is an integer number (902727900).

Almost surely, 2^20340345235 is an apocalyptic number.

20340345235 is a deficient number, since it is larger than the sum of its proper divisors (8546947565).

20340345235 is a wasteful number, since it uses less digits than its factorization.

20340345235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20911.

The product of its (nonzero) digits is 43200, while the sum is 31.

Adding to 20340345235 its reverse (53254304302), we get a palindrome (73594649537).

The spelling of 20340345235 in words is "twenty billion, three hundred forty million, three hundred forty-five thousand, two hundred thirty-five".