12011001021023 has 8 divisors (see below), whose sum is σ = 12031284357120. Its totient is φ = 11990719317240.

The previous prime is 12011001020999. The next prime is 12011001021049. The reversal of 12011001021023 is 32012010011021.

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

It is a cyclic number.

It is not a de Polignac number, because 12011001021023 - 2²⁴ = 12010984243807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011001020989 and 12011001021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011001021223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14798558 + ... + 15589076.

It is an arithmetic number, because the mean of its divisors is an integer number (1503910544640).

Almost surely, 2^{12011001021023} is an apocalyptic number.

12011001021023 is a deficient number, since it is larger than the sum of its proper divisors (20283336097).

12011001021023 is an equidigital number, since it uses as much as digits as its factorization.

12011001021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816157.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12011001021023 its reverse (32012010011021), we get a palindrome (44023011032044).

The spelling of 12011001021023 in words is "twelve trillion, eleven billion, one million, twenty-one thousand, twenty-three".