123015352155125 has 8 divisors (see below), whose sum is σ = 153523159489752. Its totient is φ = 98412281724000.

The previous prime is 123015352155119. The next prime is 123015352155131. The reversal of 123015352155125 is 521551253510321.

It is an interprime number because it is at equal distance from previous prime (123015352155119) and next prime (123015352155131).

It can be written as a sum of positive squares in 4 ways, for example, as 117219955876 + 122898132199249 = 342374^2 + 11085943^2 .

It is not a de Polignac number, because 123015352155125 - 2⁸ = 123015352154869 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 492061408496 + ... + 492061408745.

It is an arithmetic number, because the mean of its divisors is an integer number (19190394936219).

Almost surely, 2^{123015352155125} is an apocalyptic number.

It is an amenable number.

123015352155125 is a deficient number, since it is larger than the sum of its proper divisors (30507807334627).

123015352155125 is an frugal number, since it uses more digits than its factorization.

123015352155125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984122817256 (or 984122817246 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 41.

The spelling of 123015352155125 in words is "one hundred twenty-three trillion, fifteen billion, three hundred fifty-two million, one hundred fifty-five thousand, one hundred twenty-five".