1231244343 has 12 divisors (see below), whose sum is σ = 2032530448. Its totient is φ = 703568160.

The previous prime is 1231244341. The next prime is 1231244351. The reversal of 1231244343 is 3434421321.

1231244343 is a `hidden beast` number, since 1 + 2 + 312 + 4 + 4 + 343 = 666.

It is not a de Polignac number, because 1231244343 - 2¹ = 1231244341 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 (1231244341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9771718 + ... + 9771843.

Almost surely, 2^1231244343 is an apocalyptic number.

1231244343 is a deficient number, since it is larger than the sum of its proper divisors (801286105).

1231244343 is a wasteful number, since it uses less digits than its factorization.

1231244343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19543574 (or 19543571 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1231244343 is about 35089.0915100406. The cubic root of 1231244343 is about 1071.8024596909.

Adding to 1231244343 its reverse (3434421321), we get a palindrome (4665665664).

The spelling of 1231244343 in words is "one billion, two hundred thirty-one million, two hundred forty-four thousand, three hundred forty-three".