320404134100 has 36 divisors (see below), whose sum is σ = 695323363644. Its totient is φ = 128153102080.

The previous prime is 320404134031. The next prime is 320404134143. The reversal of 320404134100 is 1431404023.

It can be written as a sum of positive squares in 6 ways, for example, as 29412936004 + 290991198096 = 171502^2 + 539436^2 .

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 1522914 + ... + 1720486.

It is an arithmetic number, because the mean of its divisors is an integer number (19314537879).

Almost surely, 2^320404134100 is an apocalyptic number.

It is an amenable number.

320404134100 is an abundant number, since it is smaller than the sum of its proper divisors (374919229544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320404134100 is a wasteful number, since it uses less digits than its factorization.

320404134100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213804 (or 213797 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 320404134100 its reverse (1431404023), we get a palindrome (321835538123).

The spelling of 320404134100 in words is "three hundred twenty billion, four hundred four million, one hundred thirty-four thousand, one hundred".