30120030 has 24 divisors (see below), whose sum is σ = 78312312. Its totient is φ = 8031984.

The previous prime is 30120023. The next prime is 30120047. The reversal of 30120030 is 3002103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30119994 and 30120021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167244 + ... + 167423.

It is an arithmetic number, because the mean of its divisors is an integer number (3263013).

Almost surely, 2^30120030 is an apocalyptic number.

30120030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30120030 is an abundant number, since it is smaller than the sum of its proper divisors (48192282).

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

30120030 is a wasteful number, since it uses less digits than its factorization.

30120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334680 (or 334677 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30120030 is about 5488.1718267562. The cubic root of 30120030 is about 311.1371003893.

Adding to 30120030 its reverse (3002103), we get a palindrome (33122133).

The spelling of 30120030 in words is "thirty million, one hundred twenty thousand, thirty".