11235812369 has 4 divisors (see below), whose sum is σ = 11260836900. Its totient is φ = 11210787840.

The previous prime is 11235812353. The next prime is 11235812381. The reversal of 11235812369 is 96321853211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96321853211 = 275269 ⋅349919.

It can be written as a sum of positive squares in 2 ways, for example, as 7024451344 + 4211361025 = 83812^2 + 64895^2 .

It is a cyclic number.

It is not a de Polignac number, because 11235812369 - 2⁴ = 11235812353 is a prime.

It is a super-2 number, since 2×11235812369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11235812969) 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, 12511592 + ... + 12512489.

It is an arithmetic number, because the mean of its divisors is an integer number (2815209225).

Almost surely, 2^11235812369 is an apocalyptic number.

It is an amenable number.

11235812369 is a deficient number, since it is larger than the sum of its proper divisors (25024531).

11235812369 is an equidigital number, since it uses as much as digits as its factorization.

11235812369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25024530.

The product of its digits is 77760, while the sum is 41.

The spelling of 11235812369 in words is "eleven billion, two hundred thirty-five million, eight hundred twelve thousand, three hundred sixty-nine".