1100002020120 has 64 divisors (see below), whose sum is σ = 3666673404000. Its totient is φ = 293333871744.

The previous prime is 1100002020109. The next prime is 1100002020127. The reversal of 1100002020120 is 210202000011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100002020127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509259115 + ... + 509261274.

Almost surely, 2^{1100002020120} is an apocalyptic number.

1100002020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100002020120 is an abundant number, since it is smaller than the sum of its proper divisors (2566671383880).

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

1100002020120 is a wasteful number, since it uses less digits than its factorization.

1100002020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018520409 (or 1018520399 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1100002020120 its reverse (210202000011), we get a palindrome (1310204020131).

The spelling of 1100002020120 in words is "one trillion, one hundred billion, two million, twenty thousand, one hundred twenty".