202132203109 has 4 divisors (see below), whose sum is σ = 205946018316. Its totient is φ = 198318387904.

The previous prime is 202132203107. The next prime is 202132203113. The reversal of 202132203109 is 901302231202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152487907009 + 49644296100 = 390497^2 + 222810^2 .

It is a cyclic number.

It is not a de Polignac number, because 202132203109 - 2¹ = 202132203107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202132203103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906907524 + ... + 1906907629.

It is an arithmetic number, because the mean of its divisors is an integer number (51486504579).

Almost surely, 2^202132203109 is an apocalyptic number.

It is an amenable number.

202132203109 is a deficient number, since it is larger than the sum of its proper divisors (3813815207).

202132203109 is an equidigital number, since it uses as much as digits as its factorization.

202132203109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813815206.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 202132203109 in words is "two hundred two billion, one hundred thirty-two million, two hundred three thousand, one hundred nine".