203211020113 has 2 divisors, whose sum is σ = 203211020114. Its totient is φ = 203211020112.

The previous prime is 203211020101. The next prime is 203211020119. The reversal of 203211020113 is 311020112302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200732673024 + 2478347089 = 448032^2 + 49783^2 .

It is a cyclic number.

It is not a de Polignac number, because 203211020113 - 2⁵ = 203211020081 is a prime.

It is a super-4 number, since 4×203211020113⁴ (a number of 46 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (203211020119) 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, 101605510056 + 101605510057.

It is an arithmetic number, because the mean of its divisors is an integer number (101605510057).

Almost surely, 2^203211020113 is an apocalyptic number.

It is an amenable number.

203211020113 is a deficient number, since it is larger than the sum of its proper divisors (1).

203211020113 is an equidigital number, since it uses as much as digits as its factorization.

203211020113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203211020113 its reverse (311020112302), we get a palindrome (514231132415).

The spelling of 203211020113 in words is "two hundred three billion, two hundred eleven million, twenty thousand, one hundred thirteen".