311342143201 has 2 divisors, whose sum is σ = 311342143202. Its totient is φ = 311342143200.

The previous prime is 311342143199. The next prime is 311342143297. The reversal of 311342143201 is 102341243113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208798733025 + 102543410176 = 456945^2 + 320224^2 .

It is a cyclic number.

It is not a de Polignac number, because 311342143201 - 2¹ = 311342143199 is a prime.

Together with 311342143199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (311342149201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155671071600 + 155671071601.

It is an arithmetic number, because the mean of its divisors is an integer number (155671071601).

Almost surely, 2^311342143201 is an apocalyptic number.

It is an amenable number.

311342143201 is a deficient number, since it is larger than the sum of its proper divisors (1).

311342143201 is an equidigital number, since it uses as much as digits as its factorization.

311342143201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 311342143201 its reverse (102341243113), we get a palindrome (413683386314).

The spelling of 311342143201 in words is "three hundred eleven billion, three hundred forty-two million, one hundred forty-three thousand, two hundred one".