1231140023343 has 24 divisors (see below), whose sum is σ = 1805204883248. Its totient is φ = 808353292032.

The previous prime is 1231140023339. The next prime is 1231140023353. The reversal of 1231140023343 is 3433200411321.

It is a happy number.

1231140023343 is a `hidden beast` number, since 1 + 2 + 311 + 4 + 0 + 0 + 2 + 3 + 343 = 666.

It is not a de Polignac number, because 1231140023343 - 2² = 1231140023339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231140023353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2960421 + ... + 3350577.

Almost surely, 2^{1231140023343} is an apocalyptic number.

1231140023343 is a deficient number, since it is larger than the sum of its proper divisors (574064859905).

1231140023343 is a wasteful number, since it uses less digits than its factorization.

1231140023343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395463 (or 395460 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1231140023343 its reverse (3433200411321), we get a palindrome (4664340434664).

The spelling of 1231140023343 in words is "one trillion, two hundred thirty-one billion, one hundred forty million, twenty-three thousand, three hundred forty-three".