320451312052 has 24 divisors (see below), whose sum is σ = 562209675552. Its totient is φ = 159820096800.

The previous prime is 320451312029. The next prime is 320451312059. The reversal of 320451312052 is 250213154023.

It is a self number, because there is not a number n which added to its sum of digits gives 320451312052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320451312059) 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, 15689727 + ... + 15710137.

It is an arithmetic number, because the mean of its divisors is an integer number (23425403148).

Almost surely, 2^320451312052 is an apocalyptic number.

It is an amenable number.

320451312052 is a deficient number, since it is larger than the sum of its proper divisors (241758363500).

320451312052 is a wasteful number, since it uses less digits than its factorization.

320451312052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30159 (or 30157 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 320451312052 its reverse (250213154023), we get a palindrome (570664466075).

The spelling of 320451312052 in words is "three hundred twenty billion, four hundred fifty-one million, three hundred twelve thousand, fifty-two".