203011013331109 has 2 divisors, whose sum is σ = 203011013331110. Its totient is φ = 203011013331108.

The previous prime is 203011013331067. The next prime is 203011013331179. The reversal of 203011013331109 is 901133310110302.

203011013331109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200579861914884 + 2431151416225 = 14162622^2 + 1559215^2 .

It is a cyclic number.

It is not a de Polignac number, because 203011013331109 - 2⁴⁵ = 167826641242277 is a prime.

It is a super-2 number, since 2×203011013331109² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203011013331179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101505506665554 + 101505506665555.

It is an arithmetic number, because the mean of its divisors is an integer number (101505506665555).

Almost surely, 2^{203011013331109} is an apocalyptic number.

It is an amenable number.

203011013331109 is a deficient number, since it is larger than the sum of its proper divisors (1).

203011013331109 is an equidigital number, since it uses as much as digits as its factorization.

203011013331109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The spelling of 203011013331109 in words is "two hundred three trillion, eleven billion, thirteen million, three hundred thirty-one thousand, one hundred nine".