20252111105 has 8 divisors (see below), whose sum is σ = 24665258112. Its totient is φ = 15959872368.

The previous prime is 20252111093. The next prime is 20252111149. The reversal of 20252111105 is 50111125202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20252111105 is a prime.

It is a Duffinian number.

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, 30226697 + ... + 30227366.

It is an arithmetic number, because the mean of its divisors is an integer number (3083157264).

Almost surely, 2^20252111105 is an apocalyptic number.

It is an amenable number.

20252111105 is a deficient number, since it is larger than the sum of its proper divisors (4413147007).

20252111105 is an equidigital number, since it uses as much as digits as its factorization.

20252111105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60454135.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 20252111105 its reverse (50111125202), we get a palindrome (70363236307).

The spelling of 20252111105 in words is "twenty billion, two hundred fifty-two million, one hundred eleven thousand, one hundred five".