340030121 has 2 divisors, whose sum is σ = 340030122. Its totient is φ = 340030120.

The previous prime is 340030109. The next prime is 340030151. The reversal of 340030121 is 121030043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240250000 + 99780121 = 15500^2 + 9989^2 .

It is an emirp because it is prime and its reverse (121030043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340030121 - 2¹⁸ = 339767977 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 340030096 and 340030105.

It is not a weakly prime, because it can be changed into another prime (340030151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170015060 + 170015061.

It is an arithmetic number, because the mean of its divisors is an integer number (170015061).

Almost surely, 2^340030121 is an apocalyptic number.

It is an amenable number.

340030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

340030121 is an equidigital number, since it uses as much as digits as its factorization.

340030121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 340030121 is about 18439.9056667869. The cubic root of 340030121 is about 697.9738149141.

Adding to 340030121 its reverse (121030043), we get a palindrome (461060164).

The spelling of 340030121 in words is "three hundred forty million, thirty thousand, one hundred twenty-one".