2021130302123 has 2 divisors, whose sum is σ = 2021130302124. Its totient is φ = 2021130302122.

The previous prime is 2021130302077. The next prime is 2021130302131. The reversal of 2021130302123 is 3212030311202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021130302123 - 2⁸ = 2021130301867 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021130302095 and 2021130302104.

It is not a weakly prime, because it can be changed into another prime (2021130302153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010565151061 + 1010565151062.

It is an arithmetic number, because the mean of its divisors is an integer number (1010565151062).

Almost surely, 2^{2021130302123} is an apocalyptic number.

2021130302123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021130302123 is an equidigital number, since it uses as much as digits as its factorization.

2021130302123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2021130302123 its reverse (3212030311202), we get a palindrome (5233160613325).

The spelling of 2021130302123 in words is "two trillion, twenty-one billion, one hundred thirty million, three hundred two thousand, one hundred twenty-three".