2308212421 has 2 divisors, whose sum is σ = 2308212422. Its totient is φ = 2308212420.

The previous prime is 2308212407. The next prime is 2308212463. The reversal of 2308212421 is 1242128032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1805825025 + 502387396 = 42495^2 + 22414^2 .

It is a cyclic number.

It is not a de Polignac number, because 2308212421 - 2⁷ = 2308212293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2308212721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154106210 + 1154106211.

It is an arithmetic number, because the mean of its divisors is an integer number (1154106211).

Almost surely, 2^2308212421 is an apocalyptic number.

It is an amenable number.

2308212421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2308212421 is an equidigital number, since it uses as much as digits as its factorization.

2308212421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2308212421 is about 48043.8593474754. The cubic root of 2308212421 is about 1321.5753347184.

The spelling of 2308212421 in words is "two billion, three hundred eight million, two hundred twelve thousand, four hundred twenty-one".