30442012120 has 64 divisors (see below), whose sum is σ = 74592252000. Its totient is φ = 11113817088.

The previous prime is 30442012087. The next prime is 30442012127. The reversal of 30442012120 is 2121024403.

It is a super-3 number, since 3×30442012120³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442012127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282610 + ... + 375169.

Almost surely, 2^30442012120 is an apocalyptic number.

It is an amenable number.

30442012120 is an abundant number, since it is smaller than the sum of its proper divisors (44150239880).

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

30442012120 is a wasteful number, since it uses less digits than its factorization.

30442012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657892 (or 657888 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 30442012120 its reverse (2121024403), we get a palindrome (32563036523).

The spelling of 30442012120 in words is "thirty billion, four hundred forty-two million, twelve thousand, one hundred twenty".