11431140342 has 32 divisors (see below), whose sum is σ = 23089547232. Its totient is φ = 3772575744.

The previous prime is 11431140317. The next prime is 11431140349. The reversal of 11431140342 is 24304113411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431140349) 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, 653778 + ... + 671034.

It is an arithmetic number, because the mean of its divisors is an integer number (721548351).

Almost surely, 2^11431140342 is an apocalyptic number.

11431140342 is an abundant number, since it is smaller than the sum of its proper divisors (11658406890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11431140342 is a wasteful number, since it uses less digits than its factorization.

11431140342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18352.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11431140342 its reverse (24304113411), we get a palindrome (35735253753).

The spelling of 11431140342 in words is "eleven billion, four hundred thirty-one million, one hundred forty thousand, three hundred forty-two".