2102301430421 has 2 divisors, whose sum is σ = 2102301430422. Its totient is φ = 2102301430420.

The previous prime is 2102301430409. The next prime is 2102301430507. The reversal of 2102301430421 is 1240341032012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2044742703025 + 57558727396 = 1429945^2 + 239914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102301430421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102301430121) 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, 1051150715210 + 1051150715211.

It is an arithmetic number, because the mean of its divisors is an integer number (1051150715211).

Almost surely, 2^{2102301430421} is an apocalyptic number.

It is an amenable number.

2102301430421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102301430421 is an equidigital number, since it uses as much as digits as its factorization.

2102301430421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2102301430421 its reverse (1240341032012), we get a palindrome (3342642462433).

The spelling of 2102301430421 in words is "two trillion, one hundred two billion, three hundred one million, four hundred thirty thousand, four hundred twenty-one".