312100320201 has 4 divisors (see below), whose sum is σ = 416133760272. Its totient is φ = 208066880132.

The previous prime is 312100320173. The next prime is 312100320209. The reversal of 312100320201 is 102023001213.

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 312100320201 - 2¹⁸ = 312100058057 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312100320209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52016720031 + ... + 52016720036.

It is an arithmetic number, because the mean of its divisors is an integer number (104033440068).

Almost surely, 2^312100320201 is an apocalyptic number.

It is an amenable number.

312100320201 is a deficient number, since it is larger than the sum of its proper divisors (104033440071).

312100320201 is a wasteful number, since it uses less digits than its factorization.

312100320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104033440070.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 312100320201 its reverse (102023001213), we get a palindrome (414123321414).

The spelling of 312100320201 in words is "three hundred twelve billion, one hundred million, three hundred twenty thousand, two hundred one".