320120404445 has 8 divisors (see below), whose sum is σ = 392317772544. Its totient is φ = 250647465424.

The previous prime is 320120404427. The next prime is 320120404447. The reversal of 320120404445 is 544404021023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320120404445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320120404447) 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, 681107009 + ... + 681107478.

It is an arithmetic number, because the mean of its divisors is an integer number (49039721568).

Almost surely, 2^320120404445 is an apocalyptic number.

It is an amenable number.

320120404445 is a deficient number, since it is larger than the sum of its proper divisors (72197368099).

320120404445 is a wasteful number, since it uses less digits than its factorization.

320120404445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362214539.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 320120404445 its reverse (544404021023), we get a palindrome (864524425468).

The spelling of 320120404445 in words is "three hundred twenty billion, one hundred twenty million, four hundred four thousand, four hundred forty-five".