232100231281 has 2 divisors, whose sum is σ = 232100231282. Its totient is φ = 232100231280.

The previous prime is 232100231257. The next prime is 232100231303. The reversal of 232100231281 is 182132001232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196231280400 + 35868950881 = 442980^2 + 189391^2 .

It is a cyclic number.

It is not a de Polignac number, because 232100231281 - 2¹¹ = 232100229233 is a prime.

It is a super-2 number, since 2×232100231281² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (232100231201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116050115640 + 116050115641.

It is an arithmetic number, because the mean of its divisors is an integer number (116050115641).

Almost surely, 2^232100231281 is an apocalyptic number.

It is an amenable number.

232100231281 is a deficient number, since it is larger than the sum of its proper divisors (1).

232100231281 is an equidigital number, since it uses as much as digits as its factorization.

232100231281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 232100231281 in words is "two hundred thirty-two billion, one hundred million, two hundred thirty-one thousand, two hundred eighty-one".