312420103999 has 4 divisors (see below), whose sum is σ = 312421226040. Its totient is φ = 312418981960.

The previous prime is 312420103997. The next prime is 312420104023. The reversal of 312420103999 is 999301024213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 312420103999 - 2¹ = 312420103997 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 (312420103993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208209 + ... + 817429.

It is an arithmetic number, because the mean of its divisors is an integer number (78105306510).

Almost surely, 2^312420103999 is an apocalyptic number.

312420103999 is a deficient number, since it is larger than the sum of its proper divisors (1122041).

312420103999 is an equidigital number, since it uses as much as digits as its factorization.

312420103999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122040.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 312420103999 in words is "three hundred twelve billion, four hundred twenty million, one hundred three thousand, nine hundred ninety-nine".