320234400145 has 8 divisors (see below), whose sum is σ = 419215942080. Its totient is φ = 232897745520.

The previous prime is 320234400137. The next prime is 320234400209. The reversal of 320234400145 is 541004432023.

It is a happy number.

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

It is not a de Polignac number, because 320234400145 - 2³ = 320234400137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911221765 + ... + 2911221874.

It is an arithmetic number, because the mean of its divisors is an integer number (52401992760).

Almost surely, 2^320234400145 is an apocalyptic number.

It is an amenable number.

320234400145 is a deficient number, since it is larger than the sum of its proper divisors (98981541935).

320234400145 is a wasteful number, since it uses less digits than its factorization.

320234400145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822443655.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 320234400145 its reverse (541004432023), we get a palindrome (861238832168).

The spelling of 320234400145 in words is "three hundred twenty billion, two hundred thirty-four million, four hundred thousand, one hundred forty-five".