11531465242036 has 12 divisors (see below), whose sum is σ = 20875928455620. Its totient is φ = 5566914254720.

The previous prime is 11531465242019. The next prime is 11531465242081. The reversal of 11531465242036 is 63024256413511.

It can be written as a sum of positive squares in 2 ways, for example, as 5230140302500 + 6301324939536 = 2286950^2 + 2510244^2 .

It is a super-2 number, since 2×11531465242036² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11531465241983 and 11531465242001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49704591445 + ... + 49704591676.

It is an arithmetic number, because the mean of its divisors is an integer number (1739660704635).

Almost surely, 2^{11531465242036} is an apocalyptic number.

It is an amenable number.

11531465242036 is a deficient number, since it is larger than the sum of its proper divisors (9344463213584).

11531465242036 is a wasteful number, since it uses less digits than its factorization.

11531465242036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99409183154 (or 99409183152 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 11531465242036 in words is "eleven trillion, five hundred thirty-one billion, four hundred sixty-five million, two hundred forty-two thousand, thirty-six".