340211353 has 2 divisors, whose sum is σ = 340211354. Its totient is φ = 340211352.

The previous prime is 340211351. The next prime is 340211357. The reversal of 340211353 is 353112043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221771664 + 118439689 = 14892^2 + 10883^2 .

It is a cyclic number.

It is not a de Polignac number, because 340211353 - 2¹ = 340211351 is a prime.

Together with 340211351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340211351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170105676 + 170105677.

It is an arithmetic number, because the mean of its divisors is an integer number (170105677).

Almost surely, 2^340211353 is an apocalyptic number.

It is an amenable number.

340211353 is a deficient number, since it is larger than the sum of its proper divisors (1).

340211353 is an equidigital number, since it uses as much as digits as its factorization.

340211353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 340211353 is about 18444.8191370910. The cubic root of 340211353 is about 698.0977967967.

Adding to 340211353 its reverse (353112043), we get a palindrome (693323396).

The spelling of 340211353 in words is "three hundred forty million, two hundred eleven thousand, three hundred fifty-three".