11203011020 has 48 divisors (see below), whose sum is σ = 24086861568. Its totient is φ = 4374552000.

The previous prime is 11203011019. The next prime is 11203011047. The reversal of 11203011020 is 2011030211.

It is a junction number, because it is equal to n+sod(n) for n = 11203010992 and 11203011010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793857 + ... + 2797863.

It is an arithmetic number, because the mean of its divisors is an integer number (501809616).

Almost surely, 2^11203011020 is an apocalyptic number.

11203011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203011020 is an abundant number, since it is smaller than the sum of its proper divisors (12883850548).

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

11203011020 is a wasteful number, since it uses less digits than its factorization.

11203011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7308 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11203011020 its reverse (2011030211), we get a palindrome (13214041231).

The spelling of 11203011020 in words is "eleven billion, two hundred three million, eleven thousand, twenty".