12111010132 has 24 divisors (see below), whose sum is σ = 22828883616. Its totient is φ = 5588647008.

The previous prime is 12111010057. The next prime is 12111010139. The reversal of 12111010132 is 23101011121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111010139) 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 7 ways as a sum of consecutive naturals, for example, 303783 + ... + 341329.

It is an arithmetic number, because the mean of its divisors is an integer number (951203484).

Almost surely, 2^12111010132 is an apocalyptic number.

It is an amenable number.

12111010132 is a deficient number, since it is larger than the sum of its proper divisors (10717873484).

12111010132 is a wasteful number, since it uses less digits than its factorization.

12111010132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43767 (or 43765 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111010132 its reverse (23101011121), we get a palindrome (35212021253).

The spelling of 12111010132 in words is "twelve billion, one hundred eleven million, ten thousand, one hundred thirty-two".