11404331143 has 4 divisors (see below), whose sum is σ = 11404756528. Its totient is φ = 11403905760.

The previous prime is 11404331131. The next prime is 11404331149. The reversal of 11404331143 is 34113340411.

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-11404331143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404331149) 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, 169563 + ... + 227068.

It is an arithmetic number, because the mean of its divisors is an integer number (2851189132).

Almost surely, 2^11404331143 is an apocalyptic number.

11404331143 is a deficient number, since it is larger than the sum of its proper divisors (425385).

11404331143 is an equidigital number, since it uses as much as digits as its factorization.

11404331143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425384.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11404331143 its reverse (34113340411), we get a palindrome (45517671554).

The spelling of 11404331143 in words is "eleven billion, four hundred four million, three hundred thirty-one thousand, one hundred forty-three".