231488670089 has 2 divisors, whose sum is σ = 231488670090. Its totient is φ = 231488670088.

The previous prime is 231488670041. The next prime is 231488670097. The reversal of 231488670089 is 980076884132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173884830025 + 57603840064 = 416995^2 + 240008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231488670089 is a prime.

It is not a weakly prime, because it can be changed into another prime (231488670019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115744335044 + 115744335045.

It is an arithmetic number, because the mean of its divisors is an integer number (115744335045).

Almost surely, 2^231488670089 is an apocalyptic number.

It is an amenable number.

231488670089 is a deficient number, since it is larger than the sum of its proper divisors (1).

231488670089 is an equidigital number, since it uses as much as digits as its factorization.

231488670089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 231488670089 in words is "two hundred thirty-one billion, four hundred eighty-eight million, six hundred seventy thousand, eighty-nine".