312121344201 has 4 divisors (see below), whose sum is σ = 416161792272. Its totient is φ = 208080896132.

The previous prime is 312121344187. The next prime is 312121344203. The reversal of 312121344201 is 102443121213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312121344201 - 2⁵ = 312121344169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312121344203) 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 3 ways as a sum of consecutive naturals, for example, 52020224031 + ... + 52020224036.

It is an arithmetic number, because the mean of its divisors is an integer number (104040448068).

Almost surely, 2^312121344201 is an apocalyptic number.

It is an amenable number.

312121344201 is a deficient number, since it is larger than the sum of its proper divisors (104040448071).

312121344201 is a wasteful number, since it uses less digits than its factorization.

312121344201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104040448070.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 312121344201 its reverse (102443121213), we get a palindrome (414564465414).

The spelling of 312121344201 in words is "three hundred twelve billion, one hundred twenty-one million, three hundred forty-four thousand, two hundred one".