312003112211201 has 4 divisors (see below), whose sum is σ = 312024557212500. Its totient is φ = 311981667209904.

The previous prime is 312003112211057. The next prime is 312003112211221. The reversal of 312003112211201 is 102112211300213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 205716600294976 + 106286511916225 = 14342824^2 + 10309535^2 .

It is a cyclic number.

It is not a de Polignac number, because 312003112211201 - 2³⁸ = 311728234304257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312003112211221) 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, 10722478826 + ... + 10722507923.

It is an arithmetic number, because the mean of its divisors is an integer number (78006139303125).

Almost surely, 2^{312003112211201} is an apocalyptic number.

It is an amenable number.

312003112211201 is a deficient number, since it is larger than the sum of its proper divisors (21445001299).

312003112211201 is a wasteful number, since it uses less digits than its factorization.

312003112211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21445001298.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 312003112211201 its reverse (102112211300213), we get a palindrome (414115323511414).

The spelling of 312003112211201 in words is "three hundred twelve trillion, three billion, one hundred twelve million, two hundred eleven thousand, two hundred one".