231330212249 has 2 divisors, whose sum is σ = 231330212250. Its totient is φ = 231330212248.

The previous prime is 231330212233. The next prime is 231330212339. The reversal of 231330212249 is 942212033132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211324090000 + 20006122249 = 459700^2 + 141443^2 .

It is a cyclic number.

It is not a de Polignac number, because 231330212249 - 2⁴ = 231330212233 is a prime.

It is not a weakly prime, because it can be changed into another prime (231330214249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665106124 + 115665106125.

It is an arithmetic number, because the mean of its divisors is an integer number (115665106125).

Almost surely, 2^231330212249 is an apocalyptic number.

It is an amenable number.

231330212249 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330212249 is an equidigital number, since it uses as much as digits as its factorization.

231330212249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 231330212249 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred twelve thousand, two hundred forty-nine".