312322103302021 has 4 divisors (see below), whose sum is σ = 317442137782444. Its totient is φ = 307202068821600.

The previous prime is 312322103302003. The next prime is 312322103302087. The reversal of 312322103302021 is 120203301223213.

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 26214553600225 + 286107549701796 = 5120015^2 + 16914714^2 .

It is a cyclic number.

It is not a de Polignac number, because 312322103302021 - 2¹⁷ = 312322103170949 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 (312322103362021) 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, 2560017240120 + ... + 2560017240241.

It is an arithmetic number, because the mean of its divisors is an integer number (79360534445611).

Almost surely, 2^{312322103302021} is an apocalyptic number.

It is an amenable number.

312322103302021 is a deficient number, since it is larger than the sum of its proper divisors (5120034480423).

312322103302021 is an equidigital number, since it uses as much as digits as its factorization.

312322103302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120034480422.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 312322103302021 its reverse (120203301223213), we get a palindrome (432525404525234).

The spelling of 312322103302021 in words is "three hundred twelve trillion, three hundred twenty-two billion, one hundred three million, three hundred two thousand, twenty-one".