340223311 has 4 divisors (see below), whose sum is σ = 341451832. Its totient is φ = 338994792.

The previous prime is 340223309. The next prime is 340223321. The reversal of 340223311 is 113322043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113322043 = 5273 ⋅21491.

It is a cyclic number.

It is not a de Polignac number, because 340223311 - 2¹ = 340223309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340223321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613845 + ... + 614398.

It is an arithmetic number, because the mean of its divisors is an integer number (85362958).

Almost surely, 2^340223311 is an apocalyptic number.

340223311 is a deficient number, since it is larger than the sum of its proper divisors (1228521).

340223311 is a wasteful number, since it uses less digits than its factorization.

340223311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228520.

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

The square root of 340223311 is about 18445.1432903082. The cubic root of 340223311 is about 698.1059757866.

Adding to 340223311 its reverse (113322043), we get a palindrome (453545354).

The spelling of 340223311 in words is "three hundred forty million, two hundred twenty-three thousand, three hundred eleven".