20231223212001 has 16 divisors (see below), whose sum is σ = 27841602412800. Its totient is φ = 13060986998928.

The previous prime is 20231223211963. The next prime is 20231223212027. The reversal of 20231223212001 is 10021232213202.

It is not a de Polignac number, because 20231223212001 - 2³¹ = 20229075728353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20231223212201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852978411 + ... + 853002128.

It is an arithmetic number, because the mean of its divisors is an integer number (1740100150800).

Almost surely, 2^{20231223212001} is an apocalyptic number.

It is an amenable number.

20231223212001 is a deficient number, since it is larger than the sum of its proper divisors (7610379200799).

20231223212001 is a wasteful number, since it uses less digits than its factorization.

20231223212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705980668.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20231223212001 its reverse (10021232213202), we get a palindrome (30252455425203).

The spelling of 20231223212001 in words is "twenty trillion, two hundred thirty-one billion, two hundred twenty-three million, two hundred twelve thousand, one".