1100020120 has 32 divisors (see below), whose sum is σ = 2554888320. Its totient is φ = 425813760.

The previous prime is 1100020099. The next prime is 1100020127. The reversal of 1100020120 is 210200011.

1100020120 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442317 + ... + 444796.

It is an arithmetic number, because the mean of its divisors is an integer number (79840260).

Almost surely, 2^1100020120 is an apocalyptic number.

1100020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100020120 is an abundant number, since it is smaller than the sum of its proper divisors (1454868200).

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

1100020120 is a wasteful number, since it uses less digits than its factorization.

1100020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887155 (or 887151 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1100020120 is about 33166.5512225797. The cubic root of 1100020120 is about 1032.2864091986.

Adding to 1100020120 its reverse (210200011), we get a palindrome (1310220131).

The spelling of 1100020120 in words is "one billion, one hundred million, twenty thousand, one hundred twenty".