1242331343 has 4 divisors (see below), whose sum is σ = 1355270568. Its totient is φ = 1129392120.

The previous prime is 1242331339. The next prime is 1242331367. The reversal of 1242331343 is 3431332421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1242331343 - 2² = 1242331339 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 (1242331303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56469596 + ... + 56469617.

It is an arithmetic number, because the mean of its divisors is an integer number (338817642).

Almost surely, 2^1242331343 is an apocalyptic number.

1242331343 is a deficient number, since it is larger than the sum of its proper divisors (112939225).

1242331343 is a wasteful number, since it uses less digits than its factorization.

1242331343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112939224.

The product of its digits is 5184, while the sum is 26.

The square root of 1242331343 is about 35246.7210247989. The cubic root of 1242331343 is about 1075.0099420029.

Adding to 1242331343 its reverse (3431332421), we get a palindrome (4673663764).

The spelling of 1242331343 in words is "one billion, two hundred forty-two million, three hundred thirty-one thousand, three hundred forty-three".