1111032020120 has 128 divisors (see below), whose sum is σ = 2872003392000. Its totient is φ = 382561966080.

The previous prime is 1111032020089. The next prime is 1111032020167. The reversal of 1111032020120 is 210202301111.

It is a junction number, because it is equal to n+sod(n) for n = 1111032020095 and 1111032020104.

It is a congruent number.

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, 17767229 + ... + 17829651.

It is an arithmetic number, because the mean of its divisors is an integer number (22437526500).

Almost surely, 2^{1111032020120} is an apocalyptic number.

1111032020120 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 1111032020120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1436001696000).

1111032020120 is an abundant number, since it is smaller than the sum of its proper divisors (1760971371880).

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

1111032020120 is a wasteful number, since it uses less digits than its factorization.

1111032020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64593 (or 64589 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1111032020120 its reverse (210202301111), we get a palindrome (1321234321231).

The spelling of 1111032020120 in words is "one trillion, one hundred eleven billion, thirty-two million, twenty thousand, one hundred twenty".