11230220203 has 4 divisors (see below), whose sum is σ = 11335175640. Its totient is φ = 11125264768.

The previous prime is 11230220167. The next prime is 11230220207. The reversal of 11230220203 is 30202203211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202203211 = 38047 ⋅793813.

It is a cyclic number.

It is not a de Polignac number, because 11230220203 - 2¹⁷ = 11230089131 is a prime.

It is a super-2 number, since 2×11230220203² (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 (11230220207) 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, 52477558 + ... + 52477771.

It is an arithmetic number, because the mean of its divisors is an integer number (2833793910).

Almost surely, 2^11230220203 is an apocalyptic number.

11230220203 is a deficient number, since it is larger than the sum of its proper divisors (104955437).

11230220203 is a wasteful number, since it uses less digits than its factorization.

11230220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104955436.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 11230220203 its reverse (30202203211), we get a palindrome (41432423414).

The spelling of 11230220203 in words is "eleven billion, two hundred thirty million, two hundred twenty thousand, two hundred three".