201131310120313 has 4 divisors (see below), whose sum is σ = 212962563656820. Its totient is φ = 189300056583808.

The previous prime is 201131310120229. The next prime is 201131310120317. The reversal of 201131310120313 is 313021013131102.

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 92593814914624 + 108537495205689 = 9622568^2 + 10418133^2 .

It is a cyclic number.

It is not a de Polignac number, because 201131310120313 - 2⁹ = 201131310119801 is a prime.

It is a super-2 number, since 2×201131310120313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131310120317) 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, 5915626768228 + ... + 5915626768261.

It is an arithmetic number, because the mean of its divisors is an integer number (53240640914205).

Almost surely, 2^{201131310120313} is an apocalyptic number.

It is an amenable number.

201131310120313 is a deficient number, since it is larger than the sum of its proper divisors (11831253536507).

201131310120313 is a wasteful number, since it uses less digits than its factorization.

201131310120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11831253536506.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 201131310120313 its reverse (313021013131102), we get a palindrome (514152323251415).

The spelling of 201131310120313 in words is "two hundred one trillion, one hundred thirty-one billion, three hundred ten million, one hundred twenty thousand, three hundred thirteen".