231332123330137 has 2 divisors, whose sum is σ = 231332123330138. Its totient is φ = 231332123330136.

The previous prime is 231332123330083. The next prime is 231332123330167. The reversal of 231332123330137 is 731033321233132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168506906202441 + 62825217127696 = 12981021^2 + 7926236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231332123330137 is a prime.

It is a super-3 number, since 3×231332123330137³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231332123330096 and 231332123330105.

It is not a weakly prime, because it can be changed into another prime (231332123330167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115666061665068 + 115666061665069.

It is an arithmetic number, because the mean of its divisors is an integer number (115666061665069).

Almost surely, 2^{231332123330137} is an apocalyptic number.

It is an amenable number.

231332123330137 is a deficient number, since it is larger than the sum of its proper divisors (1).

231332123330137 is an equidigital number, since it uses as much as digits as its factorization.

231332123330137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 37.

Adding to 231332123330137 its reverse (731033321233132), we get a palindrome (962365444563269).

The spelling of 231332123330137 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, one hundred twenty-three million, three hundred thirty thousand, one hundred thirty-seven".