1205324102453 has 4 divisors (see below), whose sum is σ = 1205327562348. Its totient is φ = 1205320642560.

The previous prime is 1205324102419. The next prime is 1205324102473. The reversal of 1205324102453 is 3542014235021.

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 333758087524 + 871566014929 = 577718^2 + 933577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205324102453 - 2¹⁴ = 1205324086069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205324102473) 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, 1140428 + ... + 1926453.

It is an arithmetic number, because the mean of its divisors is an integer number (301331890587).

Almost surely, 2^{1205324102453} is an apocalyptic number.

It is an amenable number.

1205324102453 is a deficient number, since it is larger than the sum of its proper divisors (3459895).

1205324102453 is an equidigital number, since it uses as much as digits as its factorization.

1205324102453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459894.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 1205324102453 its reverse (3542014235021), we get a palindrome (4747338337474).

The spelling of 1205324102453 in words is "one trillion, two hundred five billion, three hundred twenty-four million, one hundred two thousand, four hundred fifty-three".