203112322220009 has 2 divisors, whose sum is σ = 203112322220010. Its totient is φ = 203112322220008.

The previous prime is 203112322219991. The next prime is 203112322220077. The reversal of 203112322220009 is 900022223211302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203110240305625 + 2081914384 = 14251675^2 + 45628^2 .

It is a cyclic number.

It is not a de Polignac number, because 203112322220009 - 2¹⁶ = 203112322154473 is a prime.

It is not a weakly prime, because it can be changed into another prime (203112322210009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556161110004 + 101556161110005.

It is an arithmetic number, because the mean of its divisors is an integer number (101556161110005).

Almost surely, 2^{203112322220009} is an apocalyptic number.

It is an amenable number.

203112322220009 is a deficient number, since it is larger than the sum of its proper divisors (1).

203112322220009 is an equidigital number, since it uses as much as digits as its factorization.

203112322220009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 203112322220009 in words is "two hundred three trillion, one hundred twelve billion, three hundred twenty-two million, two hundred twenty thousand, nine".