20231312232101 has 2 divisors, whose sum is σ = 20231312232102. Its totient is φ = 20231312232100.

The previous prime is 20231312232049. The next prime is 20231312232127. The reversal of 20231312232101 is 10123221313202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11274753684100 + 8956558548001 = 3357790^2 + 2992751^2 .

It is a cyclic number.

It is not a de Polignac number, because 20231312232101 - 2¹⁰ = 20231312231077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20231312262101) 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 as a sum of consecutive naturals, namely, 10115656116050 + 10115656116051.

It is an arithmetic number, because the mean of its divisors is an integer number (10115656116051).

Almost surely, 2^{20231312232101} is an apocalyptic number.

It is an amenable number.

20231312232101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20231312232101 is an equidigital number, since it uses as much as digits as its factorization.

20231312232101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20231312232101 its reverse (10123221313202), we get a palindrome (30354533545303).

The spelling of 20231312232101 in words is "twenty trillion, two hundred thirty-one billion, three hundred twelve million, two hundred thirty-two thousand, one hundred one".