2421345109 has 2 divisors, whose sum is σ = 2421345110. Its totient is φ = 2421345108.

The previous prime is 2421345097. The next prime is 2421345149. The reversal of 2421345109 is 9015431242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2286274225 + 135070884 = 47815^2 + 11622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421345109 - 2¹⁹ = 2420820821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421345149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210672554 + 1210672555.

It is an arithmetic number, because the mean of its divisors is an integer number (1210672555).

Almost surely, 2^2421345109 is an apocalyptic number.

It is an amenable number.

2421345109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421345109 is an equidigital number, since it uses as much as digits as its factorization.

2421345109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2421345109 is about 49207.1652201181. The cubic root of 2421345109 is about 1342.8233906814.

The spelling of 2421345109 in words is "two billion, four hundred twenty-one million, three hundred forty-five thousand, one hundred nine".