321140230487 has 2 divisors, whose sum is σ = 321140230488. Its totient is φ = 321140230486.

The previous prime is 321140230423. The next prime is 321140230531. The reversal of 321140230487 is 784032041123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321140230487 - 2⁶ = 321140230423 is a prime.

It is a super-3 number, since 3×321140230487³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321140230387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160570115243 + 160570115244.

It is an arithmetic number, because the mean of its divisors is an integer number (160570115244).

Almost surely, 2^321140230487 is an apocalyptic number.

321140230487 is a deficient number, since it is larger than the sum of its proper divisors (1).

321140230487 is an equidigital number, since it uses as much as digits as its factorization.

321140230487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 321140230487 in words is "three hundred twenty-one billion, one hundred forty million, two hundred thirty thousand, four hundred eighty-seven".