320022423445 has 32 divisors (see below), whose sum is σ = 388165706208. Its totient is φ = 253276028928.

The previous prime is 320022423439. The next prime is 320022423481. The reversal of 320022423445 is 544324220023.

It can be written as a sum of positive squares in 16 ways, for example, as 5446144804 + 314576278641 = 73798^2 + 560871^2 .

It is a cyclic number.

It is not a de Polignac number, because 320022423445 - 2³ = 320022423437 is a prime.

It is a super-2 number, since 2×320022423445² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262959477 + ... + 262960693.

It is an arithmetic number, because the mean of its divisors is an integer number (12130178319).

Almost surely, 2^320022423445 is an apocalyptic number.

It is an amenable number.

320022423445 is a deficient number, since it is larger than the sum of its proper divisors (68143282763).

320022423445 is a wasteful number, since it uses less digits than its factorization.

320022423445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 320022423445 its reverse (544324220023), we get a palindrome (864346643468).

The spelling of 320022423445 in words is "three hundred twenty billion, twenty-two million, four hundred twenty-three thousand, four hundred forty-five".