321140341 has 2 divisors, whose sum is σ = 321140342. Its totient is φ = 321140340.

The previous prime is 321140327. The next prime is 321140357. The reversal of 321140341 is 143041123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239599441 + 81540900 = 15479^2 + 9030^2 .

It is a cyclic number.

It is not a de Polignac number, because 321140341 - 2¹⁹ = 320616053 is a prime.

It is a super-2 number, since 2×321140341² = 206262237235192562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321140371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160570170 + 160570171.

It is an arithmetic number, because the mean of its divisors is an integer number (160570171).

Almost surely, 2^321140341 is an apocalyptic number.

It is an amenable number.

321140341 is a deficient number, since it is larger than the sum of its proper divisors (1).

321140341 is an equidigital number, since it uses as much as digits as its factorization.

321140341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 321140341 is about 17920.3889745731. The cubic root of 321140341 is about 684.8018970002.

Adding to 321140341 its reverse (143041123), we get a palindrome (464181464).

The spelling of 321140341 in words is "three hundred twenty-one million, one hundred forty thousand, three hundred forty-one".