20343253535 has 16 divisors (see below), whose sum is σ = 27490240512. Its totient is φ = 14317831200.

The previous prime is 20343253523. The next prime is 20343253537. The reversal of 20343253535 is 53535234302.

It is not a de Polignac number, because 20343253535 - 2¹⁰ = 20343252511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20343253495 and 20343253504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343253537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5964059 + ... + 5967468.

It is an arithmetic number, because the mean of its divisors is an integer number (1718140032).

Almost surely, 2^20343253535 is an apocalyptic number.

20343253535 is a deficient number, since it is larger than the sum of its proper divisors (7146986977).

20343253535 is a wasteful number, since it uses less digits than its factorization.

20343253535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11931574.

The product of its (nonzero) digits is 162000, while the sum is 35.

Adding to 20343253535 its reverse (53535234302), we get a palindrome (73878487837).

The spelling of 20343253535 in words is "twenty billion, three hundred forty-three million, two hundred fifty-three thousand, five hundred thirty-five".