312321032211101 has 4 divisors (see below), whose sum is σ = 312385071796092. Its totient is φ = 312256992626112.

The previous prime is 312321032211059. The next prime is 312321032211113. The reversal of 312321032211101 is 101112230123213.

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 199836956776900 + 112484075434201 = 14136370^2 + 10605851^2 .

It is a cyclic number.

It is not a de Polignac number, because 312321032211101 - 2³⁴ = 312303852341917 is a prime.

It is a super-2 number, since 2×312321032211101² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312326032211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32019785180 + ... + 32019794933.

It is an arithmetic number, because the mean of its divisors is an integer number (78096267949023).

Almost surely, 2^{312321032211101} is an apocalyptic number.

It is an amenable number.

312321032211101 is a deficient number, since it is larger than the sum of its proper divisors (64039584991).

312321032211101 is an equidigital number, since it uses as much as digits as its factorization.

312321032211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64039584990.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 312321032211101 its reverse (101112230123213), we get a palindrome (413433262334314).

The spelling of 312321032211101 in words is "three hundred twelve trillion, three hundred twenty-one billion, thirty-two million, two hundred eleven thousand, one hundred one".