312211303102001 has 4 divisors (see below), whose sum is σ = 312212709750900. Its totient is φ = 312209896453104.

The previous prime is 312211303101967. The next prime is 312211303102057. The reversal of 312211303102001 is 100201303112213.

It is a happy number.

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 233196110977600 + 79015192124401 = 15270760^2 + 8889049^2 .

It is a cyclic number.

It is not a de Polignac number, because 312211303102001 - 2¹⁸ = 312211302839857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312211303105001) 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, 702991466 + ... + 703435443.

It is an arithmetic number, because the mean of its divisors is an integer number (78053177437725).

Almost surely, 2^{312211303102001} is an apocalyptic number.

It is an amenable number.

312211303102001 is a deficient number, since it is larger than the sum of its proper divisors (1406648899).

312211303102001 is a wasteful number, since it uses less digits than its factorization.

312211303102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406648898.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312211303102001 its reverse (100201303112213), we get a palindrome (412412606214214).

The spelling of 312211303102001 in words is "three hundred twelve trillion, two hundred eleven billion, three hundred three million, one hundred two thousand, one".