231231210047 has 2 divisors, whose sum is σ = 231231210048. Its totient is φ = 231231210046.

The previous prime is 231231210017. The next prime is 231231210059. The reversal of 231231210047 is 740012132132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231231210047 - 2⁶ = 231231209983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231231209998 and 231231210025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231231210017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115615605023 + 115615605024.

It is an arithmetic number, because the mean of its divisors is an integer number (115615605024).

Almost surely, 2^231231210047 is an apocalyptic number.

231231210047 is a deficient number, since it is larger than the sum of its proper divisors (1).

231231210047 is an equidigital number, since it uses as much as digits as its factorization.

231231210047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 231231210047 its reverse (740012132132), we get a palindrome (971243342179).

The spelling of 231231210047 in words is "two hundred thirty-one billion, two hundred thirty-one million, two hundred ten thousand, forty-seven".