231232330231121 has 2 divisors, whose sum is σ = 231232330231122. Its totient is φ = 231232330231120.

The previous prime is 231232330231057. The next prime is 231232330231129. The reversal of 231232330231121 is 121132033232132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231153557950225 + 78772280896 = 15203735^2 + 280664^2 .

It is a cyclic number.

It is not a de Polignac number, because 231232330231121 - 2⁶ = 231232330231057 is a prime.

It is a super-2 number, since 2×231232330231121² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231232330231129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115616165115560 + 115616165115561.

It is an arithmetic number, because the mean of its divisors is an integer number (115616165115561).

Almost surely, 2^{231232330231121} is an apocalyptic number.

It is an amenable number.

231232330231121 is a deficient number, since it is larger than the sum of its proper divisors (1).

231232330231121 is an equidigital number, since it uses as much as digits as its factorization.

231232330231121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 231232330231121 its reverse (121132033232132), we get a palindrome (352364363463253).

The spelling of 231232330231121 in words is "two hundred thirty-one trillion, two hundred thirty-two billion, three hundred thirty million, two hundred thirty-one thousand, one hundred twenty-one".