1110001120020 has 576 divisors, whose sum is σ = 3858718106880. Its totient is φ = 256030212096.

The previous prime is 1110001119977. The next prime is 1110001120037. The reversal of 1110001120020 is 200211000111.

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 = 1110001119984 and 1110001120011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2376875827 + ... + 2376876293.

It is an arithmetic number, because the mean of its divisors is an integer number (6699163380).

Almost surely, 2^{1110001120020} is an apocalyptic number.

1110001120020 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 1110001120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1929359053440).

1110001120020 is an abundant number, since it is smaller than the sum of its proper divisors (2748716986860).

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

1110001120020 is a wasteful number, since it uses less digits than its factorization.

1110001120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 979 counting only the distinct ones).

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

Adding to 1110001120020 its reverse (200211000111), we get a palindrome (1310212120131).

The spelling of 1110001120020 in words is "one trillion, one hundred ten billion, one million, one hundred twenty thousand, twenty".