12111323010101 has 6 divisors (see below), whose sum is σ = 14088681868950. Its totient is φ = 10381134008616.

The previous prime is 12111323010067. The next prime is 12111323010131. The reversal of 12111323010101 is 10101032311121.

It can be written as a sum of positive squares in only one way, i.e., 12105876422500 + 5446587601 = 3479350^2 + 73801^2 .

It is not a de Polignac number, because 12111323010101 - 2¹⁰ = 12111323009077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12111323010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111323010131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123584928626 + ... + 123584928723.

It is an arithmetic number, because the mean of its divisors is an integer number (2348113644825).

Almost surely, 2^{12111323010101} is an apocalyptic number.

It is an amenable number.

12111323010101 is a deficient number, since it is larger than the sum of its proper divisors (1977358858849).

12111323010101 is an equidigital number, since it uses as much as digits as its factorization.

12111323010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247169857363 (or 247169857356 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12111323010101 its reverse (10101032311121), we get a palindrome (22212355321222).

The spelling of 12111323010101 in words is "twelve trillion, one hundred eleven billion, three hundred twenty-three million, ten thousand, one hundred one".