11020021203 has 4 divisors (see below), whose sum is σ = 14693361608. Its totient is φ = 7346680800.

The previous prime is 11020021193. The next prime is 11020021213. The reversal of 11020021203 is 30212002011.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11020021193) and next prime (11020021213).

It is a de Polignac number, because none of the positive numbers 2^k-11020021203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020021213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836670198 + ... + 1836670203.

It is an arithmetic number, because the mean of its divisors is an integer number (3673340402).

Almost surely, 2^11020021203 is an apocalyptic number.

11020021203 is a deficient number, since it is larger than the sum of its proper divisors (3673340405).

11020021203 is an equidigital number, since it uses as much as digits as its factorization.

11020021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673340404.

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

Adding to 11020021203 its reverse (30212002011), we get a palindrome (41232023214).

The spelling of 11020021203 in words is "eleven billion, twenty million, twenty-one thousand, two hundred three".