312145203603 has 16 divisors (see below), whose sum is σ = 418001103360. Its totient is φ = 207193329504.

The previous prime is 312145203599. The next prime is 312145203659. The reversal of 312145203603 is 306302541213.

It is not a de Polignac number, because 312145203603 - 2² = 312145203599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312145203683) 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, 5018925 + ... + 5080737.

It is an arithmetic number, because the mean of its divisors is an integer number (26125068960).

Almost surely, 2^312145203603 is an apocalyptic number.

312145203603 is a deficient number, since it is larger than the sum of its proper divisors (105855899757).

312145203603 is a wasteful number, since it uses less digits than its factorization.

312145203603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69098.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 312145203603 its reverse (306302541213), we get a palindrome (618447744816).

The spelling of 312145203603 in words is "three hundred twelve billion, one hundred forty-five million, two hundred three thousand, six hundred three".