20110013321100 has 72 divisors (see below), whose sum is σ = 58186602433680. Its totient is φ = 5362519937280.

The previous prime is 20110013321029. The next prime is 20110013321143. The reversal of 20110013321100 is 112331001102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20110013321100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9995634 + ... + 11837766.

Almost surely, 2^{20110013321100} is an apocalyptic number.

20110013321100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110013321100 is an abundant number, since it is smaller than the sum of its proper divisors (38076589112580).

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

20110013321100 is a wasteful number, since it uses less digits than its factorization.

20110013321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878539 (or 1878532 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20110013321100 its reverse (112331001102), we get a palindrome (20222344322202).

The spelling of 20110013321100 in words is "twenty trillion, one hundred ten billion, thirteen million, three hundred twenty-one thousand, one hundred".