320210511338 has 4 divisors (see below), whose sum is σ = 480315767010. Its totient is φ = 160105255668.

The previous prime is 320210511337. The next prime is 320210511373. The reversal of 320210511338 is 833115012023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833115012023 = 7 ⋅119016430289.

It can be written as a sum of positive squares in only one way, i.e., 160995945049 + 159214566289 = 401243^2 + 399017^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320210511338.

It is not an unprimeable number, because it can be changed into a prime (320210511337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80052627833 + ... + 80052627836.

Almost surely, 2^320210511338 is an apocalyptic number.

320210511338 is a deficient number, since it is larger than the sum of its proper divisors (160105255672).

320210511338 is a wasteful number, since it uses less digits than its factorization.

320210511338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160105255671.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 320210511338 in words is "three hundred twenty billion, two hundred ten million, five hundred eleven thousand, three hundred thirty-eight".