2421000203 has 2 divisors, whose sum is σ = 2421000204. Its totient is φ = 2421000202.

The previous prime is 2421000187. The next prime is 2421000223. The reversal of 2421000203 is 3020001242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421000203 - 2⁴ = 2421000187 is a prime.

It is a super-2 number, since 2×2421000203² = 11722483965852082418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2421000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210500101 + 1210500102.

It is an arithmetic number, because the mean of its divisors is an integer number (1210500102).

Almost surely, 2^2421000203 is an apocalyptic number.

2421000203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421000203 is an equidigital number, since it uses as much as digits as its factorization.

2421000203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2421000203 is about 49203.6604634249. The cubic root of 2421000203 is about 1342.7596286241.

Adding to 2421000203 its reverse (3020001242), we get a palindrome (5441001445).

The spelling of 2421000203 in words is "two billion, four hundred twenty-one million, two hundred three", and thus it is an aban number.