12131211121332 has 24 divisors (see below), whose sum is σ = 29971227476736. Its totient is φ = 3805870155648.

The previous prime is 12131211121327. The next prime is 12131211121333. The reversal of 12131211121332 is 23312111213121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131211121333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29733360388 + ... + 29733360795.

It is an arithmetic number, because the mean of its divisors is an integer number (1248801144864).

Almost surely, 2^{12131211121332} is an apocalyptic number.

12131211121332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12131211121332 is an abundant number, since it is smaller than the sum of its proper divisors (17840016355404).

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

12131211121332 is a wasteful number, since it uses less digits than its factorization.

12131211121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59466721207 (or 59466721205 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

Adding to 12131211121332 its reverse (23312111213121), we get a palindrome (35443322334453).

The spelling of 12131211121332 in words is "twelve trillion, one hundred thirty-one billion, two hundred eleven million, one hundred twenty-one thousand, three hundred thirty-two".