312103101320 has 32 divisors (see below), whose sum is σ = 743539743000. Its totient is φ = 117497637888.

The previous prime is 312103101259. The next prime is 312103101329. The reversal of 312103101320 is 23101301213.

It can be written as a sum of positive squares in 4 ways, for example, as 294408248836 + 17694852484 = 542594^2 + 133022^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (312103101329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 229486895 + ... + 229488254.

Almost surely, 2^312103101320 is an apocalyptic number.

It is an amenable number.

312103101320 is an abundant number, since it is smaller than the sum of its proper divisors (431436641680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312103101320 is a wasteful number, since it uses less digits than its factorization.

312103101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458975177 (or 458975173 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 312103101320 its reverse (23101301213), we get a palindrome (335204402533).

The spelling of 312103101320 in words is "three hundred twelve billion, one hundred three million, one hundred one thousand, three hundred twenty".