20012091110 has 48 divisors (see below), whose sum is σ = 41744067120. Its totient is φ = 6849047040.

The previous prime is 20012091089. The next prime is 20012091119. The reversal of 20012091110 is 1119021002.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012091119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282965 + ... + 346544.

It is an arithmetic number, because the mean of its divisors is an integer number (869668065).

Almost surely, 2^20012091110 is an apocalyptic number.

20012091110 is an abundant number, since it is smaller than the sum of its proper divisors (21731976010).

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

20012091110 is a wasteful number, since it uses less digits than its factorization.

20012091110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629561 (or 629544 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 20012091110 in words is "twenty billion, twelve million, ninety-one thousand, one hundred ten".