1234401243 has 16 divisors (see below), whose sum is σ = 1670720256. Its totient is φ = 810531680.

The previous prime is 1234401241. The next prime is 1234401251. The reversal of 1234401243 is 3421044321.

It is a cyclic number.

It is not a de Polignac number, because 1234401243 - 2¹ = 1234401241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234401241) 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 15 ways as a sum of consecutive naturals, for example, 271021 + ... + 275537.

It is an arithmetic number, because the mean of its divisors is an integer number (104420016).

Almost surely, 2^1234401243 is an apocalyptic number.

1234401243 is a deficient number, since it is larger than the sum of its proper divisors (436319013).

1234401243 is a wasteful number, since it uses less digits than its factorization.

1234401243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1234401243 is about 35134.0467780186. The cubic root of 1234401243 is about 1072.7177086960.

Adding to 1234401243 its reverse (3421044321), we get a palindrome (4655445564).

The spelling of 1234401243 in words is "one billion, two hundred thirty-four million, four hundred one thousand, two hundred forty-three".