3123010103221 has 2 divisors, whose sum is σ = 3123010103222. Its totient is φ = 3123010103220.

The previous prime is 3123010103197. The next prime is 3123010103249. The reversal of 3123010103221 is 1223010103213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2467742519025 + 655267584196 = 1570905^2 + 809486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123010103221 - 2³⁵ = 3088650364853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123010103281) 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 as a sum of consecutive naturals, namely, 1561505051610 + 1561505051611.

It is an arithmetic number, because the mean of its divisors is an integer number (1561505051611).

Almost surely, 2^{3123010103221} is an apocalyptic number.

It is an amenable number.

3123010103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123010103221 is an equidigital number, since it uses as much as digits as its factorization.

3123010103221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 3123010103221 its reverse (1223010103213), we get a palindrome (4346020206434).

The spelling of 3123010103221 in words is "three trillion, one hundred twenty-three billion, ten million, one hundred three thousand, two hundred twenty-one".