201143113121109 has 16 divisors (see below), whose sum is σ = 269596294447104. Its totient is φ = 133392677233200.

The previous prime is 201143113121063. The next prime is 201143113121123. The reversal of 201143113121109 is 901121311341102.

It is a happy number.

It is not a de Polignac number, because 201143113121109 - 2¹³ = 201143113112917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201143113121189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132681372 + ... + 134188794.

It is an arithmetic number, because the mean of its divisors is an integer number (16849768402944).

Almost surely, 2^{201143113121109} is an apocalyptic number.

It is an amenable number.

201143113121109 is a deficient number, since it is larger than the sum of its proper divisors (68453181325995).

201143113121109 is a wasteful number, since it uses less digits than its factorization.

201143113121109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740488.

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 201143113121109 in words is "two hundred one trillion, one hundred forty-three billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred nine".