320043011 has 8 divisors (see below), whose sum is σ = 337052880. Its totient is φ = 303049728.

The previous prime is 320042993. The next prime is 320043029. The reversal of 320043011 is 110340023.

It is an interprime number because it is at equal distance from previous prime (320042993) and next prime (320043029).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320043011 - 2²⁶ = 252934147 is a prime.

It is a super-2 number, since 2×320043011² = 204855057779892242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320043811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66395 + ... + 71051.

It is an arithmetic number, because the mean of its divisors is an integer number (42131610).

Almost surely, 2^320043011 is an apocalyptic number.

320043011 is a deficient number, since it is larger than the sum of its proper divisors (17009869).

320043011 is a wasteful number, since it uses less digits than its factorization.

320043011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8293.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 320043011 is about 17889.7459736017. The cubic root of 320043011 is about 684.0210222042.

Adding to 320043011 its reverse (110340023), we get a palindrome (430383034).

The spelling of 320043011 in words is "three hundred twenty million, forty-three thousand, eleven".