123143514015 has 16 divisors (see below), whose sum is σ = 197036044128. Its totient is φ = 65674400256.

The previous prime is 123143513959. The next prime is 123143514017. The reversal of 123143514015 is 510415341321.

It is not a de Polignac number, because 123143514015 - 2⁶ = 123143513951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143514017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414187 + ... + 646403.

It is an arithmetic number, because the mean of its divisors is an integer number (12314752758).

Almost surely, 2^123143514015 is an apocalyptic number.

123143514015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123143514015 is a deficient number, since it is larger than the sum of its proper divisors (73892530113).

123143514015 is a wasteful number, since it uses less digits than its factorization.

123143514015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267578.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 123143514015 its reverse (510415341321), we get a palindrome (633558855336).

The spelling of 123143514015 in words is "one hundred twenty-three billion, one hundred forty-three million, five hundred fourteen thousand, fifteen".