11530389471531 has 16 divisors (see below), whose sum is σ = 17638483513344. Its totient is φ = 6563156649984.

The previous prime is 11530389471529. The next prime is 11530389471551. The reversal of 11530389471531 is 13517498303511.

It is a happy number.

It is not a de Polignac number, because 11530389471531 - 2¹ = 11530389471529 is a prime.

It is a super-2 number, since 2×11530389471531² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11530389471511) 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 15 ways as a sum of consecutive naturals, for example, 1068216715 + ... + 1068227508.

It is an arithmetic number, because the mean of its divisors is an integer number (1102405219584).

Almost surely, 2^{11530389471531} is an apocalyptic number.

11530389471531 is a deficient number, since it is larger than the sum of its proper divisors (6108094041813).

11530389471531 is a wasteful number, since it uses less digits than its factorization.

11530389471531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136444490.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 11530389471531 in words is "eleven trillion, five hundred thirty billion, three hundred eighty-nine million, four hundred seventy-one thousand, five hundred thirty-one".