312138071203 has 16 divisors (see below), whose sum is σ = 375578705920. Its totient is φ = 253415376576.

The previous prime is 312138071177. The next prime is 312138071207. The reversal of 312138071203 is 302170831213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312138071203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312138071207) 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 15 ways as a sum of consecutive naturals, for example, 450526 + ... + 909532.

It is an arithmetic number, because the mean of its divisors is an integer number (23473669120).

Almost surely, 2^312138071203 is an apocalyptic number.

312138071203 is a deficient number, since it is larger than the sum of its proper divisors (63440634717).

312138071203 is a wasteful number, since it uses less digits than its factorization.

312138071203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464146.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 312138071203 in words is "three hundred twelve billion, one hundred thirty-eight million, seventy-one thousand, two hundred three".