20101101112 has 16 divisors (see below), whose sum is σ = 37691493840. Its totient is φ = 10050036096.

The previous prime is 20101101109. The next prime is 20101101113. The reversal of 20101101112 is 21110110102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101101113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139888 + ... + 244480.

It is an arithmetic number, because the mean of its divisors is an integer number (2355718365).

Almost surely, 2^20101101112 is an apocalyptic number.

It is an amenable number.

20101101112 is a deficient number, since it is larger than the sum of its proper divisors (17590392728).

20101101112 is a wasteful number, since it uses less digits than its factorization.

20101101112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128622 (or 128618 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20101101112 its reverse (21110110102), we get a palindrome (41211211214).

The spelling of 20101101112 in words is "twenty billion, one hundred one million, one hundred one thousand, one hundred twelve".