1234553241243 has 12 divisors (see below), whose sum is σ = 1914817272360. Its totient is φ = 705458994912.

The previous prime is 1234553241241. The next prime is 1234553241289. The reversal of 1234553241243 is 3421423554321.

It is a happy number.

It is not a de Polignac number, because 1234553241243 - 2¹ = 1234553241241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1234553241241) 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, 4199160538 + ... + 4199160831.

It is an arithmetic number, because the mean of its divisors is an integer number (159568106030).

Almost surely, 2^{1234553241243} is an apocalyptic number.

1234553241243 is a deficient number, since it is larger than the sum of its proper divisors (680264031117).

1234553241243 is an equidigital number, since it uses as much as digits as its factorization.

1234553241243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398321386 (or 8398321379 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

Adding to 1234553241243 its reverse (3421423554321), we get a palindrome (4655976795564).

The spelling of 1234553241243 in words is "one trillion, two hundred thirty-four billion, five hundred fifty-three million, two hundred forty-one thousand, two hundred forty-three".