10530420203 has 2 divisors, whose sum is σ = 10530420204. Its totient is φ = 10530420202.

The previous prime is 10530420191. The next prime is 10530420227. The reversal of 10530420203 is 30202403501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10530420203 - 2¹⁸ = 10530158059 is a prime.

It is a super-2 number, since 2×10530420203² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10530420253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5265210101 + 5265210102.

It is an arithmetic number, because the mean of its divisors is an integer number (5265210102).

Almost surely, 2^10530420203 is an apocalyptic number.

10530420203 is a deficient number, since it is larger than the sum of its proper divisors (1).

10530420203 is an equidigital number, since it uses as much as digits as its factorization.

10530420203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 10530420203 its reverse (30202403501), we get a palindrome (40732823704).

The spelling of 10530420203 in words is "ten billion, five hundred thirty million, four hundred twenty thousand, two hundred three".