20211312223023 has 4 divisors (see below), whose sum is σ = 26948416297368. Its totient is φ = 13474208148680.

The previous prime is 20211312223013. The next prime is 20211312223049. The reversal of 20211312223023 is 32032221311202.

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 20211312223023 - 2¹³ = 20211312214831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211312222984 and 20211312223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211312223013) 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, 3368552037168 + ... + 3368552037173.

It is an arithmetic number, because the mean of its divisors is an integer number (6737104074342).

Almost surely, 2^{20211312223023} is an apocalyptic number.

20211312223023 is a deficient number, since it is larger than the sum of its proper divisors (6737104074345).

20211312223023 is an equidigital number, since it uses as much as digits as its factorization.

20211312223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737104074344.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20211312223023 its reverse (32032221311202), we get a palindrome (52243533534225).

The spelling of 20211312223023 in words is "twenty trillion, two hundred eleven billion, three hundred twelve million, two hundred twenty-three thousand, twenty-three".