30442213120 has 72 divisors (see below), whose sum is σ = 79547615280. Its totient is φ = 11069890560.

The previous prime is 30442213103. The next prime is 30442213121. The reversal of 30442213120 is 2131224403.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 30442213091 and 30442213100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442213121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066965 + ... + 1095124.

It is an arithmetic number, because the mean of its divisors is an integer number (1104827990).

Almost surely, 2^30442213120 is an apocalyptic number.

It is an amenable number.

30442213120 is an abundant number, since it is smaller than the sum of its proper divisors (49105402160).

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

30442213120 is a wasteful number, since it uses less digits than its factorization.

30442213120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162121 (or 2162107 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30442213120 its reverse (2131224403), we get a palindrome (32573437523).

The spelling of 30442213120 in words is "thirty billion, four hundred forty-two million, two hundred thirteen thousand, one hundred twenty".