201000031313 has 4 divisors (see below), whose sum is σ = 204792484788. Its totient is φ = 197207577840.

The previous prime is 201000031291. The next prime is 201000031333. The reversal of 201000031313 is 313130000102.

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 164634685504 + 36365345809 = 405752^2 + 190697^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000031313 - 2¹⁸ = 200999769169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000031333) 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, 1896226658 + ... + 1896226763.

It is an arithmetic number, because the mean of its divisors is an integer number (51198121197).

Almost surely, 2^201000031313 is an apocalyptic number.

It is an amenable number.

201000031313 is a deficient number, since it is larger than the sum of its proper divisors (3792453475).

201000031313 is an equidigital number, since it uses as much as digits as its factorization.

201000031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792453474.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 201000031313 its reverse (313130000102), we get a palindrome (514130031415).

The spelling of 201000031313 in words is "two hundred one billion, thirty-one thousand, three hundred thirteen".