20202342535 has 4 divisors (see below), whose sum is σ = 24242811048. Its totient is φ = 16161874024.

The previous prime is 20202342533. The next prime is 20202342541. The reversal of 20202342535 is 53524320202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20202342535 - 2¹ = 20202342533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202342533) 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, 2020234249 + ... + 2020234258.

It is an arithmetic number, because the mean of its divisors is an integer number (6060702762).

Almost surely, 2^20202342535 is an apocalyptic number.

20202342535 is a deficient number, since it is larger than the sum of its proper divisors (4040468513).

20202342535 is an equidigital number, since it uses as much as digits as its factorization.

20202342535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040468512.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20202342535 its reverse (53524320202), we get a palindrome (73726662737).

The spelling of 20202342535 in words is "twenty billion, two hundred two million, three hundred forty-two thousand, five hundred thirty-five".