11431140323 has 32 divisors (see below), whose sum is σ = 12957563520. Its totient is φ = 10027100160.

The previous prime is 11431140317. The next prime is 11431140349. The reversal of 11431140323 is 32304113411.

It is a cyclic number.

It is not a de Polignac number, because 11431140323 - 2¹⁴ = 11431123939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431140313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2597561 + ... + 2601957.

It is an arithmetic number, because the mean of its divisors is an integer number (404923860).

Almost surely, 2^11431140323 is an apocalyptic number.

11431140323 is a deficient number, since it is larger than the sum of its proper divisors (1526423197).

11431140323 is a wasteful number, since it uses less digits than its factorization.

11431140323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 11431140323 its reverse (32304113411), we get a palindrome (43735253734).

The spelling of 11431140323 in words is "eleven billion, four hundred thirty-one million, one hundred forty thousand, three hundred twenty-three".