11100020203 has 2 divisors, whose sum is σ = 11100020204. Its totient is φ = 11100020202.

The previous prime is 11100020201. The next prime is 11100020213. The reversal of 11100020203 is 30202000111.

It is an a-pointer prime, because the next prime (11100020213) can be obtained adding 11100020203 to its sum of digits (10).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11100020203 - 2¹ = 11100020201 is a prime.

It is a super-2 number, since 2×11100020203² (a number of 21 digits) contains 22 as substring.

Together with 11100020201, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11100020203.

It is not a weakly prime, because it can be changed into another prime (11100020201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550010101 + 5550010102.

It is an arithmetic number, because the mean of its divisors is an integer number (5550010102).

Almost surely, 2^11100020203 is an apocalyptic number.

11100020203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100020203 is an equidigital number, since it uses as much as digits as its factorization.

11100020203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11100020203 its reverse (30202000111), we get a palindrome (41302020314).

The spelling of 11100020203 in words is "eleven billion, one hundred million, twenty thousand, two hundred three".