31321013330 has 8 divisors (see below), whose sum is σ = 56377824012. Its totient is φ = 12528405328.

The previous prime is 31321013291. The next prime is 31321013371. The reversal of 31321013330 is 3331012313.

It can be written as a sum of positive squares in 2 ways, for example, as 30903178849 + 417834481 = 175793^2 + 20441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1566050657 + ... + 1566050676.

Almost surely, 2^31321013330 is an apocalyptic number.

31321013330 is a deficient number, since it is larger than the sum of its proper divisors (25056810682).

31321013330 is a wasteful number, since it uses less digits than its factorization.

31321013330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132101340.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31321013330 its reverse (3331012313), we get a palindrome (34652025643).

The spelling of 31321013330 in words is "thirty-one billion, three hundred twenty-one million, thirteen thousand, three hundred thirty".