3102011020021 has 2 divisors, whose sum is σ = 3102011020022. Its totient is φ = 3102011020020.

The previous prime is 3102011019997. The next prime is 3102011020067. The reversal of 3102011020021 is 1200201102013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3037107852900 + 64903167121 = 1742730^2 + 254761^2 .

It is a cyclic number.

It is not a de Polignac number, because 3102011020021 - 2³¹ = 3099863536373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3102011019983 and 3102011020010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3102011020091) 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, 1551005510010 + 1551005510011.

It is an arithmetic number, because the mean of its divisors is an integer number (1551005510011).

Almost surely, 2^{3102011020021} is an apocalyptic number.

It is an amenable number.

3102011020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3102011020021 is an equidigital number, since it uses as much as digits as its factorization.

3102011020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 3102011020021 its reverse (1200201102013), we get a palindrome (4302212122034).

The spelling of 3102011020021 in words is "three trillion, one hundred two billion, eleven million, twenty thousand, twenty-one".