12101020232312 has 96 divisors (see below), whose sum is σ = 25163034750000. Its totient is φ = 5451350446080.

The previous prime is 12101020232311. The next prime is 12101020232447. The reversal of 12101020232312 is 21323202010121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101020232311) 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 23 ways as a sum of consecutive naturals, for example, 64666739 + ... + 64853597.

Almost surely, 2^{12101020232312} 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 12101020232312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12581517375000).

12101020232312 is an abundant number, since it is smaller than the sum of its proper divisors (13062014517688).

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

12101020232312 is a wasteful number, since it uses less digits than its factorization.

12101020232312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187485 (or 187470 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12101020232312 its reverse (21323202010121), we get a palindrome (33424222242433).

The spelling of 12101020232312 in words is "twelve trillion, one hundred one billion, twenty million, two hundred thirty-two thousand, three hundred twelve".