3123002122021 has 2 divisors, whose sum is σ = 3123002122022. Its totient is φ = 3123002122020.

The previous prime is 3123002122013. The next prime is 3123002122033. The reversal of 3123002122021 is 1202212003213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2209343340996 + 913658781025 = 1486386^2 + 955855^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123002122021 - 2³ = 3123002122013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3123002122021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123002122081) 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, 1561501061010 + 1561501061011.

It is an arithmetic number, because the mean of its divisors is an integer number (1561501061011).

Almost surely, 2^{3123002122021} is an apocalyptic number.

It is an amenable number.

3123002122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123002122021 is an equidigital number, since it uses as much as digits as its factorization.

3123002122021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 3123002122021 its reverse (1202212003213), we get a palindrome (4325214125234).

It can be divided in two parts, 312300 and 2122021, that added together give a triangular number (2434321 = T₂₂₀₆).

The spelling of 3123002122021 in words is "three trillion, one hundred twenty-three billion, two million, one hundred twenty-two thousand, twenty-one".