320455403134 has 4 divisors (see below), whose sum is σ = 480683104704. Its totient is φ = 160227701566.

The previous prime is 320455403129. The next prime is 320455403137. The reversal of 320455403134 is 431304554023.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 320455403134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320455403137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80113850782 + ... + 80113850785.

It is an arithmetic number, because the mean of its divisors is an integer number (120170776176).

Almost surely, 2^320455403134 is an apocalyptic number.

320455403134 is a deficient number, since it is larger than the sum of its proper divisors (160227701570).

320455403134 is a wasteful number, since it uses less digits than its factorization.

320455403134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160227701569.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 320455403134 its reverse (431304554023), we get a palindrome (751759957157).

The spelling of 320455403134 in words is "three hundred twenty billion, four hundred fifty-five million, four hundred three thousand, one hundred thirty-four".