30313204040 has 96 divisors (see below), whose sum is σ = 79897026240. Its totient is φ = 10139450880.

The previous prime is 30313203941. The next prime is 30313204043. The reversal of 30313204040 is 4040231303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30313204043) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 438479 + ... + 502881.

It is an arithmetic number, because the mean of its divisors is an integer number (832260690).

Almost surely, 2^30313204040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30313204040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39948513120).

30313204040 is an abundant number, since it is smaller than the sum of its proper divisors (49583822200).

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

30313204040 is a wasteful number, since it uses less digits than its factorization.

30313204040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64503 (or 64458 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30313204040 its reverse (4040231303), we get a palindrome (34353435343).

The spelling of 30313204040 in words is "thirty billion, three hundred thirteen million, two hundred four thousand, forty".