20345432435 has 8 divisors (see below), whose sum is σ = 24415346256. Its totient is φ = 16275794400.

The previous prime is 20345432423. The next prime is 20345432441. The reversal of 20345432435 is 53423454302.

It is a happy number.

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

It is not a de Polignac number, because 20345432435 - 2²⁰ = 20344383859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20345432395 and 20345432404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166385 + ... + 261485.

It is an arithmetic number, because the mean of its divisors is an integer number (3051918282).

Almost surely, 2^20345432435 is an apocalyptic number.

20345432435 is a deficient number, since it is larger than the sum of its proper divisors (4069913821).

20345432435 is an equidigital number, since it uses as much as digits as its factorization.

20345432435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137893.

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 20345432435 its reverse (53423454302), we get a palindrome (73768886737).

The spelling of 20345432435 in words is "twenty billion, three hundred forty-five million, four hundred thirty-two thousand, four hundred thirty-five".