11123203123303 has 4 divisors (see below), whose sum is σ = 11187499095288. Its totient is φ = 11058907151320.

The previous prime is 11123203123301. The next prime is 11123203123387. The reversal of 11123203123303 is 30332130232111.

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 11123203123303 - 2¹ = 11123203123301 is a prime.

It is a super-2 number, since 2×11123203123303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123203123301) 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, 32147985733 + ... + 32147986078.

It is an arithmetic number, because the mean of its divisors is an integer number (2796874773822).

Almost surely, 2^{11123203123303} is an apocalyptic number.

11123203123303 is a deficient number, since it is larger than the sum of its proper divisors (64295971985).

11123203123303 is an equidigital number, since it uses as much as digits as its factorization.

11123203123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64295971984.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 11123203123303 its reverse (30332130232111), we get a palindrome (41455333355414).

The spelling of 11123203123303 in words is "eleven trillion, one hundred twenty-three billion, two hundred three million, one hundred twenty-three thousand, three hundred three".