231213120023 has 2 divisors, whose sum is σ = 231213120024. Its totient is φ = 231213120022.

The previous prime is 231213119993. The next prime is 231213120049. The reversal of 231213120023 is 320021312132.

231213120023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231213120023 - 2¹² = 231213115927 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 231213119977 and 231213120004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231213120323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115606560011 + 115606560012.

It is an arithmetic number, because the mean of its divisors is an integer number (115606560012).

Almost surely, 2^231213120023 is an apocalyptic number.

231213120023 is a deficient number, since it is larger than the sum of its proper divisors (1).

231213120023 is an equidigital number, since it uses as much as digits as its factorization.

231213120023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231213120023 its reverse (320021312132), we get a palindrome (551234432155).

The spelling of 231213120023 in words is "two hundred thirty-one billion, two hundred thirteen million, one hundred twenty thousand, twenty-three".