123013223030515 has 16 divisors (see below), whose sum is σ = 150066565660800. Its totient is φ = 96777441371520.

The previous prime is 123013223030491. The next prime is 123013223030561. The reversal of 123013223030515 is 515030322310321.

It is not a de Polignac number, because 123013223030515 - 2⁵ = 123013223030483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39861915 + ... + 42836884.

It is an arithmetic number, because the mean of its divisors is an integer number (9379160353800).

Almost surely, 2^{123013223030515} is an apocalyptic number.

123013223030515 is a deficient number, since it is larger than the sum of its proper divisors (27053342630285).

123013223030515 is an equidigital number, since it uses as much as digits as its factorization.

123013223030515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82703742.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 123013223030515 its reverse (515030322310321), we get a palindrome (638043545340836).

The spelling of 123013223030515 in words is "one hundred twenty-three trillion, thirteen billion, two hundred twenty-three million, thirty thousand, five hundred fifteen".