1234140343 has 4 divisors (see below), whose sum is σ = 1234349440. Its totient is φ = 1233931248.

The previous prime is 1234140337. The next prime is 1234140361. The reversal of 1234140343 is 3430414321.

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 1234140343 - 2⁹ = 1234139831 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 (1234110343) 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 3 ways as a sum of consecutive naturals, for example, 95430 + ... + 107587.

It is an arithmetic number, because the mean of its divisors is an integer number (308587360).

Almost surely, 2^1234140343 is an apocalyptic number.

1234140343 is a deficient number, since it is larger than the sum of its proper divisors (209097).

1234140343 is an equidigital number, since it uses as much as digits as its factorization.

1234140343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209096.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1234140343 is about 35130.3336591043. Note that the first 3 decimals coincide. The cubic root of 1234140343 is about 1072.6421277151.

Adding to 1234140343 its reverse (3430414321), we get a palindrome (4664554664).

The spelling of 1234140343 in words is "one billion, two hundred thirty-four million, one hundred forty thousand, three hundred forty-three".