101100110002020 has 144 divisors (see below), whose sum is σ = 314982950563008. Its totient is φ = 26229361939200.

The previous prime is 101100110001971. The next prime is 101100110002037. The reversal of 101100110002020 is 20200011001101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 101100110001993 and 101100110002011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86981695 + ... + 88136345.

It is an arithmetic number, because the mean of its divisors is an integer number (2187381601132).

Almost surely, 2^{101100110002020} is an apocalyptic number.

101100110002020 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 101100110002020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157491475281504).

101100110002020 is an abundant number, since it is smaller than the sum of its proper divisors (213882840560988).

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

101100110002020 is a wasteful number, since it uses less digits than its factorization.

101100110002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167850 (or 1167845 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101100110002020 its reverse (20200011001101), we get a palindrome (121300121003121).

The spelling of 101100110002020 in words is "one hundred one trillion, one hundred billion, one hundred ten million, two thousand, twenty".