203220113 has 2 divisors, whose sum is σ = 203220114. Its totient is φ = 203220112.

The previous prime is 203220109. The next prime is 203220119. The reversal of 203220113 is 311022302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156325009 + 46895104 = 12503^2 + 6848^2 .

It is a cyclic number.

It is not a de Polignac number, because 203220113 - 2² = 203220109 is a prime.

It is not a weakly prime, because it can be changed into another prime (203220119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101610056 + 101610057.

It is an arithmetic number, because the mean of its divisors is an integer number (101610057).

Almost surely, 2^203220113 is an apocalyptic number.

It is an amenable number.

203220113 is a deficient number, since it is larger than the sum of its proper divisors (1).

203220113 is an equidigital number, since it uses as much as digits as its factorization.

203220113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 203220113 is about 14255.5292079951. The cubic root of 203220113 is about 587.9254083808.

Adding to 203220113 its reverse (311022302), we get a palindrome (514242415).

The spelling of 203220113 in words is "two hundred three million, two hundred twenty thousand, one hundred thirteen".