312103121303123 has 16 divisors (see below), whose sum is σ = 323105593933056. Its totient is φ = 301237495434720.

The previous prime is 312103121303101. The next prime is 312103121303189. The reversal of 312103121303123 is 321303121301213.

It is a cyclic number.

It is not a de Polignac number, because 312103121303123 - 2¹² = 312103121299027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312103121303092 and 312103121303101.

It is not an unprimeable number, because it can be changed into a prime (312103121303023) 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, 1004690 + ... + 25004312.

It is an arithmetic number, because the mean of its divisors is an integer number (20194099620816).

Almost surely, 2^{312103121303123} is an apocalyptic number.

312103121303123 is a deficient number, since it is larger than the sum of its proper divisors (11002472629933).

312103121303123 is a wasteful number, since it uses less digits than its factorization.

312103121303123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24002474.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 312103121303123 its reverse (321303121301213), we get a palindrome (633406242604336).

The spelling of 312103121303123 in words is "three hundred twelve trillion, one hundred three billion, one hundred twenty-one million, three hundred three thousand, one hundred twenty-three".