19980270203 has 2 divisors, whose sum is σ = 19980270204. Its totient is φ = 19980270202.

The previous prime is 19980270197. The next prime is 19980270239. The reversal of 19980270203 is 30207208991.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19980270203 - 2⁶ = 19980270139 is a prime.

It is a super-2 number, since 2×19980270203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19980270253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9990135101 + 9990135102.

It is an arithmetic number, because the mean of its divisors is an integer number (9990135102).

Almost surely, 2^19980270203 is an apocalyptic number.

19980270203 is a deficient number, since it is larger than the sum of its proper divisors (1).

19980270203 is an equidigital number, since it uses as much as digits as its factorization.

19980270203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 19980270203 in words is "nineteen billion, nine hundred eighty million, two hundred seventy thousand, two hundred three".