201043431313 has 4 divisors (see below), whose sum is σ = 211624664560. Its totient is φ = 190462198068.

The previous prime is 201043431289. The next prime is 201043431359. The reversal of 201043431313 is 313134340102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201043431313 is a prime.

It is a super-2 number, since 2×201043431313² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201043431613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5290616595 + ... + 5290616632.

It is an arithmetic number, because the mean of its divisors is an integer number (52906166140).

Almost surely, 2^201043431313 is an apocalyptic number.

It is an amenable number.

201043431313 is a deficient number, since it is larger than the sum of its proper divisors (10581233247).

201043431313 is a wasteful number, since it uses less digits than its factorization.

201043431313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581233246.

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

Adding to 201043431313 its reverse (313134340102), we get a palindrome (514177771415).

The spelling of 201043431313 in words is "two hundred one billion, forty-three million, four hundred thirty-one thousand, three hundred thirteen".