320123061115 has 32 divisors (see below), whose sum is σ = 451361356992. Its totient is φ = 214881600000.

The previous prime is 320123061091. The next prime is 320123061161. The reversal of 320123061115 is 511160321023.

It is a happy number.

It is not a de Polignac number, because 320123061115 - 2¹⁵ = 320123028347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320123061115.

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, 7171365 + ... + 7215865.

It is an arithmetic number, because the mean of its divisors is an integer number (14105042406).

Almost surely, 2^320123061115 is an apocalyptic number.

320123061115 is a deficient number, since it is larger than the sum of its proper divisors (131238295877).

320123061115 is a wasteful number, since it uses less digits than its factorization.

320123061115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54591.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 320123061115 its reverse (511160321023), we get a palindrome (831283382138).

The spelling of 320123061115 in words is "three hundred twenty billion, one hundred twenty-three million, sixty-one thousand, one hundred fifteen".