20100191110 has 16 divisors (see below), whose sum is σ = 36183337632. Its totient is φ = 8039411200.

The previous prime is 20100191087. The next prime is 20100191147. The reversal of 20100191110 is 1119100102.

It is a congruent 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, 54615 + ... + 207805.

It is an arithmetic number, because the mean of its divisors is an integer number (2261458602).

Almost surely, 2^20100191110 is an apocalyptic number.

20100191110 is a deficient number, since it is larger than the sum of its proper divisors (16083146522).

20100191110 is a wasteful number, since it uses less digits than its factorization.

20100191110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166319.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 20100191110 its reverse (1119100102), we get a palindrome (21219291212).

The spelling of 20100191110 in words is "twenty billion, one hundred million, one hundred ninety-one thousand, one hundred ten".