11313320203 has 4 divisors (see below), whose sum is σ = 11678266048. Its totient is φ = 10948374360.

The previous prime is 11313320159. The next prime is 11313320231. The reversal of 11313320203 is 30202331311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30202331311 = 110729 ⋅272759.

It is a cyclic number.

It is not a de Polignac number, because 11313320203 - 2²⁹ = 10776449291 is a prime.

It is a super-2 number, since 2×11313320203² (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 (11313320243) 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, 182472876 + ... + 182472937.

It is an arithmetic number, because the mean of its divisors is an integer number (2919566512).

Almost surely, 2^11313320203 is an apocalyptic number.

11313320203 is a deficient number, since it is larger than the sum of its proper divisors (364945845).

11313320203 is an equidigital number, since it uses as much as digits as its factorization.

11313320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364945844.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 11313320203 its reverse (30202331311), we get a palindrome (41515651514).

The spelling of 11313320203 in words is "eleven billion, three hundred thirteen million, three hundred twenty thousand, two hundred three".