120405003125 has 48 divisors (see below), whose sum is σ = 164771578944. Its totient is φ = 87250800000.

The previous prime is 120405003071. The next prime is 120405003143. The reversal of 120405003125 is 521300504021.

It is not a de Polignac number, because 120405003125 - 2⁸ = 120405002869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120405003125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9721937 + ... + 9734313.

It is an arithmetic number, because the mean of its divisors is an integer number (3432741228).

Almost surely, 2^120405003125 is an apocalyptic number.

It is an amenable number.

120405003125 is a deficient number, since it is larger than the sum of its proper divisors (44366575819).

120405003125 is an equidigital number, since it uses as much as digits as its factorization.

120405003125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696 (or 12676 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 120405003125 its reverse (521300504021), we get a palindrome (641705507146).

The spelling of 120405003125 in words is "one hundred twenty billion, four hundred five million, three thousand, one hundred twenty-five".