11604211253 has 4 divisors (see below), whose sum is σ = 11604613068. Its totient is φ = 11603809440.

The previous prime is 11604211219. The next prime is 11604211291. The reversal of 11604211253 is 35211240611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35211240611 = 491 ⋅71713321.

It can be written as a sum of positive squares in 2 ways, for example, as 5141176804 + 6463034449 = 71702^2 + 80393^2 .

It is a cyclic number.

It is not a de Polignac number, because 11604211253 - 2¹⁰ = 11604210229 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 (11604211453) 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, 153926 + ... + 216567.

It is an arithmetic number, because the mean of its divisors is an integer number (2901153267).

Almost surely, 2^11604211253 is an apocalyptic number.

It is an amenable number.

11604211253 is a deficient number, since it is larger than the sum of its proper divisors (401815).

11604211253 is an equidigital number, since it uses as much as digits as its factorization.

11604211253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401814.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 11604211253 its reverse (35211240611), we get a palindrome (46815451864).

The spelling of 11604211253 in words is "eleven billion, six hundred four million, two hundred eleven thousand, two hundred fifty-three".