312011303101 has 4 divisors (see below), whose sum is σ = 312012422172. Its totient is φ = 312010184032.

The previous prime is 312011303099. The next prime is 312011303111. The reversal of 312011303101 is 101303110213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 61616147076 + 250395156025 = 248226^2 + 500395^2 .

It is a cyclic number.

It is not a de Polignac number, because 312011303101 - 2¹ = 312011303099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312011303111) 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, 230745 + ... + 822961.

It is an arithmetic number, because the mean of its divisors is an integer number (78003105543).

Almost surely, 2^312011303101 is an apocalyptic number.

It is an amenable number.

312011303101 is a deficient number, since it is larger than the sum of its proper divisors (1119071).

312011303101 is an equidigital number, since it uses as much as digits as its factorization.

312011303101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119070.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 312011303101 its reverse (101303110213), we get a palindrome (413314413314).

The spelling of 312011303101 in words is "three hundred twelve billion, eleven million, three hundred three thousand, one hundred one".