203211139 has 2 divisors, whose sum is σ = 203211140. Its totient is φ = 203211138.

The previous prime is 203211133. The next prime is 203211143. The reversal of 203211139 is 931112302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203211139 - 2¹³ = 203202947 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (203211133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101605569 + 101605570.

It is an arithmetic number, because the mean of its divisors is an integer number (101605570).

Almost surely, 2^203211139 is an apocalyptic number.

203211139 is a deficient number, since it is larger than the sum of its proper divisors (1).

203211139 is an equidigital number, since it uses as much as digits as its factorization.

203211139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 203211139 is about 14255.2144494567. The cubic root of 203211139 is about 587.9167541845.

The spelling of 203211139 in words is "two hundred three million, two hundred eleven thousand, one hundred thirty-nine".