110001020101020 has 144 divisors (see below), whose sum is σ = 335272373235072. Its totient is φ = 29192734005120.

The previous prime is 110001020100971. The next prime is 110001020101069. The reversal of 110001020101020 is 20101020100011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (110001020100971) and next prime (110001020101069).

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 = 110001020100993 and 110001020101011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 662402119 + ... + 662568161.

It is an arithmetic number, because the mean of its divisors is an integer number (2328280369688).

Almost surely, 2^{110001020101020} is an apocalyptic number.

110001020101020 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 110001020101020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167636186617536).

110001020101020 is an abundant number, since it is smaller than the sum of its proper divisors (225271353134052).

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

110001020101020 is a wasteful number, since it uses less digits than its factorization.

110001020101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183712 (or 183707 counting only the distinct ones).

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

Adding to 110001020101020 its reverse (20101020100011), we get a palindrome (130102040201031).

The spelling of 110001020101020 in words is "one hundred ten trillion, one billion, twenty million, one hundred one thousand, twenty".