20213630603 has 2 divisors, whose sum is σ = 20213630604. Its totient is φ = 20213630602.

The previous prime is 20213630599. The next prime is 20213630629. The reversal of 20213630603 is 30603631202.

It is an a-pointer prime, because the next prime (20213630629) can be obtained adding 20213630603 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20213630603 - 2² = 20213630599 is a prime.

It is not a weakly prime, because it can be changed into another prime (20213630903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106815301 + 10106815302.

It is an arithmetic number, because the mean of its divisors is an integer number (10106815302).

Almost surely, 2^20213630603 is an apocalyptic number.

20213630603 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213630603 is an equidigital number, since it uses as much as digits as its factorization.

20213630603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 20213630603 in words is "twenty billion, two hundred thirteen million, six hundred thirty thousand, six hundred three".