30130212440 has 16 divisors (see below), whose sum is σ = 67792978080. Its totient is φ = 12052084960.

The previous prime is 30130212439. The next prime is 30130212443. The reversal of 30130212440 is 4421203103.

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 (30130212443) 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 3 ways as a sum of consecutive naturals, for example, 376627616 + ... + 376627695.

It is an arithmetic number, because the mean of its divisors is an integer number (4237061130).

Almost surely, 2^30130212440 is an apocalyptic number.

It is an amenable number.

30130212440 is an abundant number, since it is smaller than the sum of its proper divisors (37662765640).

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

30130212440 is a wasteful number, since it uses less digits than its factorization.

30130212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753255322 (or 753255318 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30130212440 its reverse (4421203103), we get a palindrome (34551415543).

The spelling of 30130212440 in words is "thirty billion, one hundred thirty million, two hundred twelve thousand, four hundred forty".