1234553241205 has 4 divisors (see below), whose sum is σ = 1481463889452. Its totient is φ = 987642592960.

The previous prime is 1234553241179. The next prime is 1234553241211. The reversal of 1234553241205 is 5021423554321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 335890952721 + 898662288484 = 579561^2 + 947978^2 .

It is not a de Polignac number, because 1234553241205 - 2²⁷ = 1234419023477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123455324116 + ... + 123455324125.

It is an arithmetic number, because the mean of its divisors is an integer number (370365972363).

Almost surely, 2^{1234553241205} is an apocalyptic number.

It is an amenable number.

1234553241205 is a deficient number, since it is larger than the sum of its proper divisors (246910648247).

1234553241205 is an equidigital number, since it uses as much as digits as its factorization.

1234553241205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246910648246.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1234553241205 its reverse (5021423554321), we get a palindrome (6255976795526).

The spelling of 1234553241205 in words is "one trillion, two hundred thirty-four billion, five hundred fifty-three million, two hundred forty-one thousand, two hundred five".