312220130103 has 72 divisors (see below), whose sum is σ = 527664297888. Its totient is φ = 174206358144.

The previous prime is 312220130099. The next prime is 312220130111. The reversal of 312220130103 is 301031022213.

312220130103 is a `hidden beast` number, since 312 + 220 + 1 + 30 + 103 = 666.

It is not a de Polignac number, because 312220130103 - 2² = 312220130099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220130143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 190726201 + ... + 190727837.

It is an arithmetic number, because the mean of its divisors is an integer number (7328670804).

Almost surely, 2^312220130103 is an apocalyptic number.

312220130103 is a deficient number, since it is larger than the sum of its proper divisors (215444167785).

312220130103 is a wasteful number, since it uses less digits than its factorization.

312220130103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 312220130103 its reverse (301031022213), we get a palindrome (613251152316).

The spelling of 312220130103 in words is "three hundred twelve billion, two hundred twenty million, one hundred thirty thousand, one hundred three".