312120555540103 has 16 divisors (see below), whose sum is σ = 315358644812416. Its totient is φ = 308899264284000.

The previous prime is 312120555540049. The next prime is 312120555540107. The reversal of 312120555540103 is 301045555021213.

It is a cyclic number.

It is not a de Polignac number, because 312120555540103 - 2⁹ = 312120555539591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312120555540107) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 98453800 + ... + 101574562.

It is an arithmetic number, because the mean of its divisors is an integer number (19709915300776).

Almost surely, 2^{312120555540103} is an apocalyptic number.

312120555540103 is a deficient number, since it is larger than the sum of its proper divisors (3238089272313).

312120555540103 is a wasteful number, since it uses less digits than its factorization.

312120555540103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123454.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 312120555540103 in words is "three hundred twelve trillion, one hundred twenty billion, five hundred fifty-five million, five hundred forty thousand, one hundred three".