20123023212211 has 8 divisors (see below), whose sum is σ = 20424402855360. Its totient is φ = 19821674040168.

The previous prime is 20123023212121. The next prime is 20123023212239. The reversal of 20123023212211 is 11221232032102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123023212211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123023212811) 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, 6285361 + ... + 8930386.

It is an arithmetic number, because the mean of its divisors is an integer number (2553050356920).

Almost surely, 2^{20123023212211} is an apocalyptic number.

20123023212211 is a deficient number, since it is larger than the sum of its proper divisors (301379643149).

20123023212211 is a wasteful number, since it uses less digits than its factorization.

20123023212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15235553.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20123023212211 its reverse (11221232032102), we get a palindrome (31344255244313).

The spelling of 20123023212211 in words is "twenty trillion, one hundred twenty-three billion, twenty-three million, two hundred twelve thousand, two hundred eleven".