312031103103 has 24 divisors (see below), whose sum is σ = 474489241200. Its totient is φ = 197049020544.

The previous prime is 312031103101. The next prime is 312031103147. The reversal of 312031103103 is 301301130213.

It is a happy number.

312031103103 is a `hidden beast` number, since 312 + 0 + 31 + 10 + 310 + 3 = 666.

It is not a de Polignac number, because 312031103103 - 2¹ = 312031103101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031103101) 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 23 ways as a sum of consecutive naturals, for example, 1407883 + ... + 1614371.

It is an arithmetic number, because the mean of its divisors is an integer number (19770385050).

Almost surely, 2^312031103103 is an apocalyptic number.

312031103103 is a deficient number, since it is larger than the sum of its proper divisors (162458138097).

312031103103 is a wasteful number, since it uses less digits than its factorization.

312031103103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215351 (or 215348 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 312031103103 its reverse (301301130213), we get a palindrome (613332233316).

The spelling of 312031103103 in words is "three hundred twelve billion, thirty-one million, one hundred three thousand, one hundred three".