1135216636531 has 4 divisors (see below), whose sum is σ = 1171836528064. Its totient is φ = 1098596745000.

The previous prime is 1135216636483. The next prime is 1135216636559. The reversal of 1135216636531 is 1356366125311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1135216636531 - 2¹³ = 1135216628339 is a prime.

It is a super-2 number, since 2×1135216636531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135216636231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18309945720 + ... + 18309945781.

It is an arithmetic number, because the mean of its divisors is an integer number (292959132016).

Almost surely, 2^{1135216636531} is an apocalyptic number.

1135216636531 is a deficient number, since it is larger than the sum of its proper divisors (36619891533).

1135216636531 is an equidigital number, since it uses as much as digits as its factorization.

1135216636531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36619891532.

The product of its digits is 291600, while the sum is 43.

The spelling of 1135216636531 in words is "one trillion, one hundred thirty-five billion, two hundred sixteen million, six hundred thirty-six thousand, five hundred thirty-one".