11123201303 has 4 divisors (see below), whose sum is σ = 11777507280. Its totient is φ = 10468895328.

The previous prime is 11123201267. The next prime is 11123201311. The reversal of 11123201303 is 30310232111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30310232111 = 61 ⋅496889051.

It is a cyclic number.

It is not a de Polignac number, because 11123201303 - 2⁶ = 11123201239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 654305959 = 11123201303 / (1 + 1 + 1 + 2 + 3 + 2 + 0 + 1 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123201393) 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, 327152963 + ... + 327152996.

It is an arithmetic number, because the mean of its divisors is an integer number (2944376820).

Almost surely, 2^11123201303 is an apocalyptic number.

11123201303 is a deficient number, since it is larger than the sum of its proper divisors (654305977).

11123201303 is an equidigital number, since it uses as much as digits as its factorization.

11123201303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654305976.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11123201303 its reverse (30310232111), we get a palindrome (41433433414).

The spelling of 11123201303 in words is "eleven billion, one hundred twenty-three million, two hundred one thousand, three hundred three".