11535211053 has 20 divisors (see below), whose sum is σ = 17290458108. Its totient is φ = 7663878720.

The previous prime is 11535211007. The next prime is 11535211097. The reversal of 11535211053 is 35011253511.

11535211053 is a `hidden beast` number, since 1 + 1 + 535 + 21 + 105 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6426106569 + 5109104484 = 80163^2 + 71478^2 .

It is not a de Polignac number, because 11535211053 - 2⁶ = 11535210989 is a prime.

It is a super-2 number, since 2×11535211053² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535211153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219288 + ... + 266753.

Almost surely, 2^11535211053 is an apocalyptic number.

It is an amenable number.

11535211053 is a deficient number, since it is larger than the sum of its proper divisors (5755247055).

11535211053 is an equidigital number, since it uses as much as digits as its factorization.

11535211053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486346 (or 486337 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 11535211053 its reverse (35011253511), we get a palindrome (46546464564).

The spelling of 11535211053 in words is "eleven billion, five hundred thirty-five million, two hundred eleven thousand, fifty-three".