312001113123 has 48 divisors (see below), whose sum is σ = 549584289280. Its totient is φ = 166589073792.

The previous prime is 312001113121. The next prime is 312001113133. The reversal of 312001113123 is 321311100213.

It is not a de Polignac number, because 312001113123 - 2¹ = 312001113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312001113096 and 312001113105.

It is not an unprimeable number, because it can be changed into a prime (312001113121) 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 47 ways as a sum of consecutive naturals, for example, 1697911 + ... + 1872672.

Almost surely, 2^312001113123 is an apocalyptic number.

312001113123 is a deficient number, since it is larger than the sum of its proper divisors (237583176157).

312001113123 is a wasteful number, since it uses less digits than its factorization.

312001113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570688 (or 3570685 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 312001113123 its reverse (321311100213), we get a palindrome (633312213336).

The spelling of 312001113123 in words is "three hundred twelve billion, one million, one hundred thirteen thousand, one hundred twenty-three".