312100103103221 has 8 divisors (see below), whose sum is σ = 328526630836800. Its totient is φ = 295673596021440.

The previous prime is 312100103103211. The next prime is 312100103103227. The reversal of 312100103103221 is 122301301001213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312100103103221 - 2¹⁸ = 312100102841077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312100103103193 and 312100103103202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312100103103227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33146000 + ... + 41507318.

It is an arithmetic number, because the mean of its divisors is an integer number (41065828854600).

Almost surely, 2^{312100103103221} is an apocalyptic number.

It is an amenable number.

312100103103221 is a deficient number, since it is larger than the sum of its proper divisors (16426527733579).

312100103103221 is a wasteful number, since it uses less digits than its factorization.

312100103103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325899.

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

Adding to 312100103103221 its reverse (122301301001213), we get a palindrome (434401404104434).

The spelling of 312100103103221 in words is "three hundred twelve trillion, one hundred billion, one hundred three million, one hundred three thousand, two hundred twenty-one".