338111311 has 4 divisors (see below), whose sum is σ = 338896224. Its totient is φ = 337326400.

The previous prime is 338111309. The next prime is 338111341. The reversal of 338111311 is 113111833.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 338111311 - 2¹ = 338111309 is a prime.

It is a super-2 number, since 2×338111311² = 228638517252277442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338111341) 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, 391810 + ... + 392671.

It is an arithmetic number, because the mean of its divisors is an integer number (84724056).

Almost surely, 2^338111311 is an apocalyptic number.

338111311 is a deficient number, since it is larger than the sum of its proper divisors (784913).

338111311 is an equidigital number, since it uses as much as digits as its factorization.

338111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784912.

The product of its digits is 216, while the sum is 22.

The square root of 338111311 is about 18387.8033217674. The cubic root of 338111311 is about 696.6584350983.

The spelling of 338111311 in words is "three hundred thirty-eight million, one hundred eleven thousand, three hundred eleven".