1103140020 has 24 divisors (see below), whose sum is σ = 3088792224. Its totient is φ = 294170656.

The previous prime is 1103140009. The next prime is 1103140037. The reversal of 1103140020 is 200413011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1103139978 and 1103140005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9192774 + ... + 9192893.

It is an arithmetic number, because the mean of its divisors is an integer number (128699676).

Almost surely, 2^1103140020 is an apocalyptic number.

1103140020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103140020 is an abundant number, since it is smaller than the sum of its proper divisors (1985652204).

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

1103140020 is a wasteful number, since it uses less digits than its factorization.

1103140020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18385679 (or 18385677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1103140020 is about 33213.5517522592. The cubic root of 1103140020 is about 1033.2614187436.

Adding to 1103140020 its reverse (200413011), we get a palindrome (1303553031).

The spelling of 1103140020 in words is "one billion, one hundred three million, one hundred forty thousand, twenty".