12130111532 has 96 divisors (see below), whose sum is σ = 27687744000. Its totient is φ = 4511485440.

The previous prime is 12130111529. The next prime is 12130111559. The reversal of 12130111532 is 23511103121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 787319 + ... + 802577.

It is an arithmetic number, because the mean of its divisors is an integer number (288414000).

Almost surely, 2^12130111532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12130111532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13843872000).

12130111532 is an abundant number, since it is smaller than the sum of its proper divisors (15557632468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12130111532 is a wasteful number, since it uses less digits than its factorization.

12130111532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15399 (or 15397 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 12130111532 its reverse (23511103121), we get a palindrome (35641214653).

The spelling of 12130111532 in words is "twelve billion, one hundred thirty million, one hundred eleven thousand, five hundred thirty-two".