11431114431 has 16 divisors (see below), whose sum is σ = 16629000960. Its totient is φ = 6927145920.

The previous prime is 11431114403. The next prime is 11431114439. The reversal of 11431114431 is 13441113411.

It is not a de Polignac number, because 11431114431 - 2¹¹ = 11431112383 is a prime.

It is a super-2 number, since 2×11431114431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431114439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401475 + ... + 429003.

It is an arithmetic number, because the mean of its divisors is an integer number (1039312560).

Almost surely, 2^11431114431 is an apocalyptic number.

11431114431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11431114431 is a deficient number, since it is larger than the sum of its proper divisors (5197886529).

11431114431 is a wasteful number, since it uses less digits than its factorization.

11431114431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40126.

The product of its digits is 576, while the sum is 24.

Adding to 11431114431 its reverse (13441113411), we get a palindrome (24872227842).

The spelling of 11431114431 in words is "eleven billion, four hundred thirty-one million, one hundred fourteen thousand, four hundred thirty-one".