31340332201 has 4 divisors (see below), whose sum is σ = 33183881172. Its totient is φ = 29496783232.

The previous prime is 31340332193. The next prime is 31340332217. The reversal of 31340332201 is 10223304313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10223304313 = 3533 ⋅2893661.

It can be written as a sum of positive squares in 2 ways, for example, as 14184571801 + 17155760400 = 119099^2 + 130980^2 .

It is not a de Polignac number, because 31340332201 - 2³ = 31340332193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31340332901) 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, 921774460 + ... + 921774493.

It is an arithmetic number, because the mean of its divisors is an integer number (8295970293).

Almost surely, 2^31340332201 is an apocalyptic number.

It is an amenable number.

31340332201 is a deficient number, since it is larger than the sum of its proper divisors (1843548971).

31340332201 is a wasteful number, since it uses less digits than its factorization.

31340332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843548970.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31340332201 its reverse (10223304313), we get a palindrome (41563636514).

The spelling of 31340332201 in words is "thirty-one billion, three hundred forty million, three hundred thirty-two thousand, two hundred one".