201311413 has 4 divisors (see below), whose sum is σ = 206752300. Its totient is φ = 195870528.

The previous prime is 201311393. The next prime is 201311419. The reversal of 201311413 is 314113102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314113102 = 2 ⋅157056551.

It can be written as a sum of positive squares in 2 ways, for example, as 170641969 + 30669444 = 13063^2 + 5538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201311413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201311419) 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, 2720388 + ... + 2720461.

It is an arithmetic number, because the mean of its divisors is an integer number (51688075).

Almost surely, 2^201311413 is an apocalyptic number.

It is an amenable number.

201311413 is a deficient number, since it is larger than the sum of its proper divisors (5440887).

201311413 is an equidigital number, since it uses as much as digits as its factorization.

201311413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440886.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 201311413 is about 14188.4253178427. The cubic root of 201311413 is about 586.0789623237.

Adding to 201311413 its reverse (314113102), we get a palindrome (515424515).

The spelling of 201311413 in words is "two hundred one million, three hundred eleven thousand, four hundred thirteen".