111100102011020 has 96 divisors (see below), whose sum is σ = 249695949888000. Its totient is φ = 41431025664000.

The previous prime is 111100102010993. The next prime is 111100102011047. The reversal of 111100102011020 is 20110201001111.

It is an interprime number because it is at equal distance from previous prime (111100102010993) and next prime (111100102011047).

It is a junction number, because it is equal to n+sod(n) for n = 111100102010992 and 111100102011010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1192070 + ... + 14953970.

It is an arithmetic number, because the mean of its divisors is an integer number (2600999478000).

Almost surely, 2^{111100102011020} is an apocalyptic number.

111100102011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100102011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124847974944000).

111100102011020 is an abundant number, since it is smaller than the sum of its proper divisors (138595847876980).

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

111100102011020 is a wasteful number, since it uses less digits than its factorization.

111100102011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762419 (or 13762417 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111100102011020 its reverse (20110201001111), we get a palindrome (131210303012131).

The spelling of 111100102011020 in words is "one hundred eleven trillion, one hundred billion, one hundred two million, eleven thousand, twenty".