11311334431 has 8 divisors (see below), whose sum is σ = 11370283344. Its totient is φ = 11252532480.

The previous prime is 11311334413. The next prime is 11311334497. The reversal of 11311334431 is 13443311311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11311334431 - 2⁷ = 11311334303 is a prime.

It is a super-2 number, since 2×11311334431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311334396 and 11311334405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311334131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119311 + ... + 191983.

It is an arithmetic number, because the mean of its divisors is an integer number (1421285418).

Almost surely, 2^11311334431 is an apocalyptic number.

11311334431 is a deficient number, since it is larger than the sum of its proper divisors (58948913).

11311334431 is an equidigital number, since it uses as much as digits as its factorization.

11311334431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73481.

The product of its digits is 1296, while the sum is 25.

Adding to 11311334431 its reverse (13443311311), we get a palindrome (24754645742).

The spelling of 11311334431 in words is "eleven billion, three hundred eleven million, three hundred thirty-four thousand, four hundred thirty-one".