201432234109 has 2 divisors, whose sum is σ = 201432234110. Its totient is φ = 201432234108.

The previous prime is 201432234097. The next prime is 201432234149. The reversal of 201432234109 is 901432234102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165000877209 + 36431356900 = 406203^2 + 190870^2 .

It is a cyclic number.

It is not a de Polignac number, because 201432234109 - 2⁵ = 201432234077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201432234149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100716117054 + 100716117055.

It is an arithmetic number, because the mean of its divisors is an integer number (100716117055).

Almost surely, 2^201432234109 is an apocalyptic number.

It is an amenable number.

201432234109 is a deficient number, since it is larger than the sum of its proper divisors (1).

201432234109 is an equidigital number, since it uses as much as digits as its factorization.

201432234109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 201432234109 in words is "two hundred one billion, four hundred thirty-two million, two hundred thirty-four thousand, one hundred nine".