11515500445023 has 48 divisors (see below), whose sum is σ = 17944645485312. Its totient is φ = 7089882912000.

The previous prime is 11515500445019. The next prime is 11515500445027. The reversal of 11515500445023 is 32054400551511.

11515500445023 is a `hidden beast` number, since 1 + 1 + 51 + 550 + 0 + 4 + 4 + 50 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (11515500445019) and next prime (11515500445027).

It is not a de Polignac number, because 11515500445023 - 2² = 11515500445019 is a prime.

It is a super-2 number, since 2×11515500445023² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515500445027) 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 47 ways as a sum of consecutive naturals, for example, 219913 + ... + 4804098.

It is an arithmetic number, because the mean of its divisors is an integer number (373846780944).

Almost surely, 2^{11515500445023} is an apocalyptic number.

11515500445023 is a deficient number, since it is larger than the sum of its proper divisors (6429145040289).

11515500445023 is a wasteful number, since it uses less digits than its factorization.

11515500445023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024316 (or 5024313 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 11515500445023 its reverse (32054400551511), we get a palindrome (43569900996534).

The spelling of 11515500445023 in words is "eleven trillion, five hundred fifteen billion, five hundred million, four hundred forty-five thousand, twenty-three".