11212010203 has 4 divisors (see below), whose sum is σ = 11213706160. Its totient is φ = 11210314248.

The previous prime is 11212010171. The next prime is 11212010207. The reversal of 11212010203 is 30201021211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212010203 - 2⁵ = 11212010171 is a prime.

It is a super-2 number, since 2×11212010203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212010207) 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, 838023 + ... + 851296.

It is an arithmetic number, because the mean of its divisors is an integer number (2803426540).

Almost surely, 2^11212010203 is an apocalyptic number.

11212010203 is a deficient number, since it is larger than the sum of its proper divisors (1695957).

11212010203 is an equidigital number, since it uses as much as digits as its factorization.

11212010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695956.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11212010203 its reverse (30201021211), we get a palindrome (41413031414).

The spelling of 11212010203 in words is "eleven billion, two hundred twelve million, ten thousand, two hundred three".