11030203020 has 48 divisors (see below), whose sum is σ = 30899635200. Its totient is φ = 2939952576.

The previous prime is 11030202979. The next prime is 11030203021. The reversal of 11030203020 is 2030203011.

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 = 11030202987 and 11030203005.

It is not an unprimeable number, because it can be changed into a prime (11030203021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82149 + ... + 169731.

It is an arithmetic number, because the mean of its divisors is an integer number (643742400).

Almost surely, 2^11030203020 is an apocalyptic number.

11030203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11030203020 is an abundant number, since it is smaller than the sum of its proper divisors (19869432180).

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

11030203020 is a wasteful number, since it uses less digits than its factorization.

11030203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89694 (or 89692 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 11030203020 its reverse (2030203011), we get a palindrome (13060406031).

Subtracting from 11030203020 its reverse (2030203011), we obtain a palindrome (9000000009).

The spelling of 11030203020 in words is "eleven billion, thirty million, two hundred three thousand, twenty".