11431123142311 has 8 divisors (see below), whose sum is σ = 11804274809360. Its totient is φ = 11062849275072.

The previous prime is 11431123142227. The next prime is 11431123142363. The reversal of 11431123142311 is 11324132113411.

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 11431123142311 - 2²⁷ = 11430988924583 is a prime.

It is a super-2 number, since 2×11431123142311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11431123142311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431123142371) 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, 1219445190 + ... + 1219454563.

It is an arithmetic number, because the mean of its divisors is an integer number (1475534351170).

Almost surely, 2^{11431123142311} is an apocalyptic number.

11431123142311 is a deficient number, since it is larger than the sum of its proper divisors (373151667049).

11431123142311 is a wasteful number, since it uses less digits than its factorization.

11431123142311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438899905.

The product of its digits is 1728, while the sum is 28.

Adding to 11431123142311 its reverse (11324132113411), we get a palindrome (22755255255722).

The spelling of 11431123142311 in words is "eleven trillion, four hundred thirty-one billion, one hundred twenty-three million, one hundred forty-two thousand, three hundred eleven".