1163003020 has 24 divisors (see below), whose sum is σ = 2443667184. Its totient is φ = 464942016.

The previous prime is 1163002993. The next prime is 1163003021. The reversal of 1163003020 is 203003611.

It is a junction number, because it is equal to n+sod(n) for n = 1163002985 and 1163003003.

It is not an unprimeable number, because it can be changed into a prime (1163003021) 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, 22894 + ... + 53386.

It is an arithmetic number, because the mean of its divisors is an integer number (101819466).

Almost surely, 2^1163003020 is an apocalyptic number.

1163003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163003020 is an abundant number, since it is smaller than the sum of its proper divisors (1280664164).

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

1163003020 is a wasteful number, since it uses less digits than its factorization.

1163003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32409 (or 32407 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1163003020 is about 34102.8300878388. The cubic root of 1163003020 is about 1051.6234960368.

Adding to 1163003020 its reverse (203003611), we get a palindrome (1366006631).

The spelling of 1163003020 in words is "one billion, one hundred sixty-three million, three thousand, twenty".