11243214404431 has 4 divisors (see below), whose sum is σ = 11834962531000. Its totient is φ = 10651466277864.

The previous prime is 11243214404371. The next prime is 11243214404453. The reversal of 11243214404431 is 13440441234211.

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 11243214404431 - 2¹⁷ = 11243214273359 is a prime.

It is a super-2 number, since 2×11243214404431² (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 (11243214404491) 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, 295874063256 + ... + 295874063293.

It is an arithmetic number, because the mean of its divisors is an integer number (2958740632750).

Almost surely, 2^{11243214404431} is an apocalyptic number.

11243214404431 is a deficient number, since it is larger than the sum of its proper divisors (591748126569).

11243214404431 is an equidigital number, since it uses as much as digits as its factorization.

11243214404431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591748126568.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 11243214404431 its reverse (13440441234211), we get a palindrome (24683655638642).

The spelling of 11243214404431 in words is "eleven trillion, two hundred forty-three billion, two hundred fourteen million, four hundred four thousand, four hundred thirty-one".