1103144020 has 24 divisors (see below), whose sum is σ = 2527203168. Its totient is φ = 401143200.

The previous prime is 1103143997. The next prime is 1103144023. The reversal of 1103144020 is 204413011.

It is a junction number, because it is equal to n+sod(n) for n = 1103143985 and 1103144003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103144023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506926 + ... + 2507365.

It is an arithmetic number, because the mean of its divisors is an integer number (105300132).

Almost surely, 2^1103144020 is an apocalyptic number.

1103144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103144020 is an abundant number, since it is smaller than the sum of its proper divisors (1424059148).

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

1103144020 is a wasteful number, since it uses less digits than its factorization.

1103144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014311 (or 5014309 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1103144020 is about 33213.6119685890. The cubic root of 1103144020 is about 1033.2626676152.

Adding to 1103144020 its reverse (204413011), we get a palindrome (1307557031).

The spelling of 1103144020 in words is "one billion, one hundred three million, one hundred forty-four thousand, twenty".