320111229 has 4 divisors (see below), whose sum is σ = 426814976. Its totient is φ = 213407484.

The previous prime is 320111213. The next prime is 320111243. The reversal of 320111229 is 922111023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 922111023 = 3 ⋅307370341.

It is not a de Polignac number, because 320111229 - 2⁴ = 320111213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320111269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53351869 + ... + 53351874.

It is an arithmetic number, because the mean of its divisors is an integer number (106703744).

Almost surely, 2^320111229 is an apocalyptic number.

It is an amenable number.

320111229 is a deficient number, since it is larger than the sum of its proper divisors (106703747).

320111229 is a wasteful number, since it uses less digits than its factorization.

320111229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106703746.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 320111229 is about 17891.6524949486. The cubic root of 320111229 is about 684.0696190381.

The spelling of 320111229 in words is "three hundred twenty million, one hundred eleven thousand, two hundred twenty-nine".