11033231421011 has 4 divisors (see below), whose sum is σ = 11512937134992. Its totient is φ = 10553525707032.

The previous prime is 11033231420929. The next prime is 11033231421109. The reversal of 11033231421011 is 11012413233011.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-11033231421011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 479705713957 = 11033231421011 / (1 + 1 + 0 + 3 + 3 + 2 + 3 + 1 + 4 + 2 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11033231421211) 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, 239852856956 + ... + 239852857001.

It is an arithmetic number, because the mean of its divisors is an integer number (2878234283748).

Almost surely, 2^{11033231421011} is an apocalyptic number.

11033231421011 is a deficient number, since it is larger than the sum of its proper divisors (479705713981).

11033231421011 is an equidigital number, since it uses as much as digits as its factorization.

11033231421011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479705713980.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11033231421011 its reverse (11012413233011), we get a palindrome (22045644654022).

The spelling of 11033231421011 in words is "eleven trillion, thirty-three billion, two hundred thirty-one million, four hundred twenty-one thousand, eleven".