20181110052 has 12 divisors (see below), whose sum is σ = 47089256816. Its totient is φ = 6727036680.

The previous prime is 20181110029. The next prime is 20181110083. The reversal of 20181110052 is 25001118102.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840879574 + ... + 840879597.

Almost surely, 2^20181110052 is an apocalyptic number.

It is an amenable number.

20181110052 is an abundant number, since it is smaller than the sum of its proper divisors (26908146764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20181110052 is a wasteful number, since it uses less digits than its factorization.

20181110052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681759178 (or 1681759176 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 20181110052 its reverse (25001118102), we get a palindrome (45182228154).

The spelling of 20181110052 in words is "twenty billion, one hundred eighty-one million, one hundred ten thousand, fifty-two".