31340133330 has 128 divisors (see below), whose sum is σ = 84331653120. Its totient is φ = 7388290560.

The previous prime is 31340133313. The next prime is 31340133343. The reversal of 31340133330 is 3333104313.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31340133330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3301531 + ... + 3311009.

It is an arithmetic number, because the mean of its divisors is an integer number (658841040).

Almost surely, 2^31340133330 is an apocalyptic number.

31340133330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31340133330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42165826560).

31340133330 is an abundant number, since it is smaller than the sum of its proper divisors (52991519790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31340133330 is a wasteful number, since it uses less digits than its factorization.

31340133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 31340133330 its reverse (3333104313), we get a palindrome (34673237643).

The spelling of 31340133330 in words is "thirty-one billion, three hundred forty million, one hundred thirty-three thousand, three hundred thirty".