1100144020 has 24 divisors (see below), whose sum is σ = 2344787424. Its totient is φ = 433489056.

The previous prime is 1100143999. The next prime is 1100144039. The reversal of 1100144020 is 204410011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409162 + ... + 411841.

It is an arithmetic number, because the mean of its divisors is an integer number (97699476).

Almost surely, 2^1100144020 is an apocalyptic number.

1100144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100144020 is an abundant number, since it is smaller than the sum of its proper divisors (1244643404).

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

1100144020 is a wasteful number, since it uses less digits than its factorization.

1100144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821079 (or 821077 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1100144020 is about 33168.4190156842. The cubic root of 1100144020 is about 1032.3251646971.

Adding to 1100144020 its reverse (204410011), we get a palindrome (1304554031).

The spelling of 1100144020 in words is "one billion, one hundred million, one hundred forty-four thousand, twenty".