12001103120111 has 12 divisors (see below), whose sum is σ = 13965721267968. Its totient is φ = 10282788173952.

The previous prime is 12001103120107. The next prime is 12001103120113. The reversal of 12001103120111 is 11102130110021.

It is not a de Polignac number, because 12001103120111 - 2² = 12001103120107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001103120113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45959471 + ... + 46219856.

It is an arithmetic number, because the mean of its divisors is an integer number (1163810105664).

Almost surely, 2^{12001103120111} is an apocalyptic number.

12001103120111 is a deficient number, since it is larger than the sum of its proper divisors (1964618147857).

12001103120111 is an equidigital number, since it uses as much as digits as its factorization.

12001103120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92181998 (or 92181991 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12001103120111 its reverse (11102130110021), we get a palindrome (23103233230132).

The spelling of 12001103120111 in words is "twelve trillion, one billion, one hundred three million, one hundred twenty thousand, one hundred eleven".