11331111121003 has 4 divisors (see below), whose sum is σ = 11823768126288. Its totient is φ = 10838454115720.

The previous prime is 11331111120997. The next prime is 11331111121021. The reversal of 11331111121003 is 30012111113311.

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 11331111121003 - 2²¹ = 11331109023851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11331111121093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246328502608 + ... + 246328502653.

It is an arithmetic number, because the mean of its divisors is an integer number (2955942031572).

Almost surely, 2^{11331111121003} is an apocalyptic number.

11331111121003 is a deficient number, since it is larger than the sum of its proper divisors (492657005285).

11331111121003 is an equidigital number, since it uses as much as digits as its factorization.

11331111121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492657005284.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11331111121003 its reverse (30012111113311), we get a palindrome (41343222234314).

The spelling of 11331111121003 in words is "eleven trillion, three hundred thirty-one billion, one hundred eleven million, one hundred twenty-one thousand, three".