120123125525 has 18 divisors (see below), whose sum is σ = 161291956230. Its totient is φ = 88706304960.

The previous prime is 120123125449. The next prime is 120123125533. The reversal of 120123125525 is 525521321021.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 92256165169 + 27866960356 = 303737^2 + 166934^2 .

It is not a de Polignac number, because 120123125525 - 2²⁴ = 120106348309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14211530 + ... + 14219979.

It is an arithmetic number, because the mean of its divisors is an integer number (8960664235).

Almost surely, 2^120123125525 is an apocalyptic number.

It is an amenable number.

120123125525 is a deficient number, since it is larger than the sum of its proper divisors (41168830705).

120123125525 is a wasteful number, since it uses less digits than its factorization.

120123125525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28431545 (or 28431527 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 120123125525 its reverse (525521321021), we get a palindrome (645644446546).

The spelling of 120123125525 in words is "one hundred twenty billion, one hundred twenty-three million, one hundred twenty-five thousand, five hundred twenty-five".