201031331339 has 4 divisors (see below), whose sum is σ = 203453395656. Its totient is φ = 198609267024.

The previous prime is 201031331273. The next prime is 201031331357. The reversal of 201031331339 is 933133130102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 933133130102 = 2 ⋅466566565051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201031331339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201031333339) 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, 1211032034 + ... + 1211032199.

It is an arithmetic number, because the mean of its divisors is an integer number (50863348914).

Almost surely, 2^201031331339 is an apocalyptic number.

201031331339 is a deficient number, since it is larger than the sum of its proper divisors (2422064317).

201031331339 is an equidigital number, since it uses as much as digits as its factorization.

201031331339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422064316.

The product of its (nonzero) digits is 4374, while the sum is 29.

The spelling of 201031331339 in words is "two hundred one billion, thirty-one million, three hundred thirty-one thousand, three hundred thirty-nine".