123015115235125 has 32 divisors (see below), whose sum is σ = 166333937387904. Its totient is φ = 90469118880000.

The previous prime is 123015115235119. The next prime is 123015115235167. The reversal of 123015115235125 is 521532511510321.

It is not a de Polignac number, because 123015115235125 - 2¹³ = 123015115226933 is a prime.

It is a super-2 number, since 2×123015115235125² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673041951 + ... + 673224700.

It is an arithmetic number, because the mean of its divisors is an integer number (5197935543372).

Almost surely, 2^{123015115235125} is an apocalyptic number.

It is an amenable number.

123015115235125 is a deficient number, since it is larger than the sum of its proper divisors (43318822152779).

123015115235125 is a wasteful number, since it uses less digits than its factorization.

123015115235125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346266726 (or 1346266716 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

Adding to 123015115235125 its reverse (521532511510321), we get a palindrome (644547626745446).

The spelling of 123015115235125 in words is "one hundred twenty-three trillion, fifteen billion, one hundred fifteen million, two hundred thirty-five thousand, one hundred twenty-five".