12111001101023 has 4 divisors (see below), whose sum is σ = 13212001201128. Its totient is φ = 11010001000920.

The previous prime is 12111001100981. The next prime is 12111001101113. The reversal of 12111001101023 is 32010110011121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111001101023 - 2¹⁰ = 12111001099999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111001100989 and 12111001101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111001104023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550500050036 + ... + 550500050057.

It is an arithmetic number, because the mean of its divisors is an integer number (3303000300282).

Almost surely, 2^{12111001101023} is an apocalyptic number.

12111001101023 is a deficient number, since it is larger than the sum of its proper divisors (1101000100105).

12111001101023 is a wasteful number, since it uses less digits than its factorization.

12111001101023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101000100104.

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

Adding to 12111001101023 its reverse (32010110011121), we get a palindrome (44121111112144).

The spelling of 12111001101023 in words is "twelve trillion, one hundred eleven billion, one million, one hundred one thousand, twenty-three".