11531541743057 has 6 divisors (see below), whose sum is σ = 13414242435858. Its totient is φ = 9884178636864.

The previous prime is 11531541742997. The next prime is 11531541743083. The reversal of 11531541743057 is 75034714513511.

It can be written as a sum of positive squares in only one way, i.e., 7473859274896 + 4057682468161 = 2733836^2 + 2014369^2 .

It is not a de Polignac number, because 11531541743057 - 2²⁸ = 11531273307601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11531541748057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117668793248 + ... + 117668793345.

It is an arithmetic number, because the mean of its divisors is an integer number (2235707072643).

Almost surely, 2^{11531541743057} is an apocalyptic number.

It is an amenable number.

11531541743057 is a deficient number, since it is larger than the sum of its proper divisors (1882700692801).

11531541743057 is an equidigital number, since it uses as much as digits as its factorization.

11531541743057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235337586607 (or 235337586600 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 47.

The spelling of 11531541743057 in words is "eleven trillion, five hundred thirty-one billion, five hundred forty-one million, seven hundred forty-three thousand, fifty-seven".