201340232413 has 4 divisors (see below), whose sum is σ = 201975375420. Its totient is φ = 200705089408.

The previous prime is 201340232407. The next prime is 201340232437. The reversal of 201340232413 is 314232043102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314232043102 = 2 ⋅157116021551.

It can be written as a sum of positive squares in 2 ways, for example, as 26036404164 + 175303828249 = 161358^2 + 418693^2 .

It is a cyclic number.

It is not a de Polignac number, because 201340232413 - 2²¹ = 201338135261 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 (201340235413) 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, 317571028 + ... + 317571661.

It is an arithmetic number, because the mean of its divisors is an integer number (50493843855).

Almost surely, 2^201340232413 is an apocalyptic number.

It is an amenable number.

201340232413 is a deficient number, since it is larger than the sum of its proper divisors (635143007).

201340232413 is an equidigital number, since it uses as much as digits as its factorization.

201340232413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635143006.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 201340232413 its reverse (314232043102), we get a palindrome (515572275515).

The spelling of 201340232413 in words is "two hundred one billion, three hundred forty million, two hundred thirty-two thousand, four hundred thirteen".