320404134045 has 16 divisors (see below), whose sum is σ = 523553990400. Its totient is φ = 167246412864.

The previous prime is 320404134031. The next prime is 320404134143. The reversal of 320404134045 is 540431404023.

It is not a de Polignac number, because 320404134045 - 2¹¹ = 320404131997 is a prime.

It is a super-2 number, since 2×320404134045² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227236270 + ... + 227237679.

It is an arithmetic number, because the mean of its divisors is an integer number (32722124400).

Almost surely, 2^320404134045 is an apocalyptic number.

It is an amenable number.

320404134045 is a deficient number, since it is larger than the sum of its proper divisors (203149856355).

320404134045 is a wasteful number, since it uses less digits than its factorization.

320404134045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454474004.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 320404134045 its reverse (540431404023), we get a palindrome (860835538068).

The spelling of 320404134045 in words is "three hundred twenty billion, four hundred four million, one hundred thirty-four thousand, forty-five".