11231404434011 has 4 divisors (see below), whose sum is σ = 11240199583632. Its totient is φ = 11222609284392.

The previous prime is 11231404433981. The next prime is 11231404434023. The reversal of 11231404434011 is 11043440413211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11231404434011 is a prime.

It is a super-3 number, since 3×11231404434011³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231404434611) 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, 4397572895 + ... + 4397575448.

It is an arithmetic number, because the mean of its divisors is an integer number (2810049895908).

Almost surely, 2^{11231404434011} is an apocalyptic number.

11231404434011 is a deficient number, since it is larger than the sum of its proper divisors (8795149621).

11231404434011 is an equidigital number, since it uses as much as digits as its factorization.

11231404434011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795149620.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 11231404434011 its reverse (11043440413211), we get a palindrome (22274844847222).

The spelling of 11231404434011 in words is "eleven trillion, two hundred thirty-one billion, four hundred four million, four hundred thirty-four thousand, eleven".