1235522130453 has 36 divisors (see below), whose sum is σ = 1950212798820. Its totient is φ = 753345785088.

The previous prime is 1235522130449. The next prime is 1235522130463. The reversal of 1235522130453 is 3540312255321.

1235522130453 is a `hidden beast` number, since 1 + 2 + 3 + 55 + 22 + 130 + 453 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 211179768849 + 1024342361604 = 459543^2 + 1012098^2 .

It is not a de Polignac number, because 1235522130453 - 2² = 1235522130449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235522130413) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3560400 + ... + 3891977.

It is an arithmetic number, because the mean of its divisors is an integer number (54172577745).

Almost surely, 2^{1235522130453} is an apocalyptic number.

1235522130453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1235522130453 is a deficient number, since it is larger than the sum of its proper divisors (714690668367).

1235522130453 is a wasteful number, since it uses less digits than its factorization.

1235522130453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452518 (or 7452502 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 1235522130453 its reverse (3540312255321), we get a palindrome (4775834385774).

The spelling of 1235522130453 in words is "one trillion, two hundred thirty-five billion, five hundred twenty-two million, one hundred thirty thousand, four hundred fifty-three".