31323013330 has 96 divisors (see below), whose sum is σ = 66600040320. Its totient is φ = 10574403840.

The previous prime is 31323013327. The next prime is 31323013333. The reversal of 31323013330 is 3331032313.

It is an interprime number because it is at equal distance from previous prime (31323013327) and next prime (31323013333).

It is a super-4 number, since 4×31323013330⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (31323013333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11468065 + ... + 11470795.

It is an arithmetic number, because the mean of its divisors is an integer number (693750420).

Almost surely, 2^31323013330 is an apocalyptic number.

31323013330 is an abundant number, since it is smaller than the sum of its proper divisors (35277026990).

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

31323013330 is a wasteful number, since it uses less digits than its factorization.

31323013330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31323013330 its reverse (3331032313), we get a palindrome (34654045643).

The spelling of 31323013330 in words is "thirty-one billion, three hundred twenty-three million, thirteen thousand, three hundred thirty".