340211233 has 2 divisors, whose sum is σ = 340211234. Its totient is φ = 340211232.

The previous prime is 340211219. The next prime is 340211237. The reversal of 340211233 is 332112043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329531409 + 10679824 = 18153^2 + 3268^2 .

It is an emirp because it is prime and its reverse (332112043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340211233 - 2⁹ = 340210721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340211233.

It is not a weakly prime, because it can be changed into another prime (340211237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170105616 + 170105617.

It is an arithmetic number, because the mean of its divisors is an integer number (170105617).

Almost surely, 2^340211233 is an apocalyptic number.

It is an amenable number.

340211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

340211233 is an equidigital number, since it uses as much as digits as its factorization.

340211233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 340211233 is about 18444.8158841448. The cubic root of 340211233 is about 698.0977147185.

Adding to 340211233 its reverse (332112043), we get a palindrome (672323276).

The spelling of 340211233 in words is "three hundred forty million, two hundred eleven thousand, two hundred thirty-three".