201331043413 has 4 divisors (see below), whose sum is σ = 201409783180. Its totient is φ = 201252303648.

The previous prime is 201331043369. The next prime is 201331043443. The reversal of 201331043413 is 314340133102.

201331043413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 113915025169 + 87416018244 = 337513^2 + 295662^2 .

It is a cyclic number.

It is not a de Polignac number, because 201331043413 - 2²¹ = 201328946261 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 (201331043443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39366048 + ... + 39371161.

It is an arithmetic number, because the mean of its divisors is an integer number (50352445795).

Almost surely, 2^201331043413 is an apocalyptic number.

It is an amenable number.

201331043413 is a deficient number, since it is larger than the sum of its proper divisors (78739767).

201331043413 is an equidigital number, since it uses as much as digits as its factorization.

201331043413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78739766.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 201331043413 its reverse (314340133102), we get a palindrome (515671176515).

The spelling of 201331043413 in words is "two hundred one billion, three hundred thirty-one million, forty-three thousand, four hundred thirteen".