123115410015 has 16 divisors (see below), whose sum is σ = 212137322208. Its totient is φ = 60610663296.

The previous prime is 123115410001. The next prime is 123115410049. The reversal of 123115410015 is 510014511321.

It is not a de Polignac number, because 123115410015 - 2⁷ = 123115409887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315680344 + ... + 315680733.

It is an arithmetic number, because the mean of its divisors is an integer number (13258582638).

Almost surely, 2^123115410015 is an apocalyptic number.

123115410015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123115410015 is a deficient number, since it is larger than the sum of its proper divisors (89021912193).

123115410015 is a wasteful number, since it uses less digits than its factorization.

123115410015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631361098.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 123115410015 its reverse (510014511321), we get a palindrome (633129921336).

The spelling of 123115410015 in words is "one hundred twenty-three billion, one hundred fifteen million, four hundred ten thousand, fifteen".