12012100023111 has 8 divisors (see below), whose sum is σ = 16016156361600. Its totient is φ = 8008055183352.

The previous prime is 12012100023109. The next prime is 12012100023127. The reversal of 12012100023111 is 11132000121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12012100023111 - 2¹ = 12012100023109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012100023611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37011 + ... + 4901588.

It is an arithmetic number, because the mean of its divisors is an integer number (2002019545200).

Almost surely, 2^{12012100023111} is an apocalyptic number.

12012100023111 is a deficient number, since it is larger than the sum of its proper divisors (4004056338489).

12012100023111 is an equidigital number, since it uses as much as digits as its factorization.

12012100023111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749365.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12012100023111 its reverse (11132000121021), we get a palindrome (23144100144132).

The spelling of 12012100023111 in words is "twelve trillion, twelve billion, one hundred million, twenty-three thousand, one hundred eleven".