20235142205 has 8 divisors (see below), whose sum is σ = 24283698912. Its totient is φ = 16187094928.

The previous prime is 20235142201. The next prime is 20235142219. The reversal of 20235142205 is 50224153202.

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

It is a cyclic number.

It is not a de Polignac number, because 20235142205 - 2² = 20235142201 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 (20235142201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33707 + ... + 203976.

It is an arithmetic number, because the mean of its divisors is an integer number (3035462364).

Almost surely, 2^20235142205 is an apocalyptic number.

It is an amenable number.

20235142205 is a deficient number, since it is larger than the sum of its proper divisors (4048556707).

20235142205 is a wasteful number, since it uses less digits than its factorization.

20235142205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254715.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20235142205 its reverse (50224153202), we get a palindrome (70459295407).

The spelling of 20235142205 in words is "twenty billion, two hundred thirty-five million, one hundred forty-two thousand, two hundred five".