30121060 has 48 divisors (see below), whose sum is σ = 65585520. Its totient is φ = 11612160.

The previous prime is 30121051. The next prime is 30121073. The reversal of 30121060 is 6012103.

It can be written as a sum of positive squares in 8 ways, for example, as 3968064 + 26152996 = 1992^2 + 5114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30121060.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89212 + ... + 89548.

It is an arithmetic number, because the mean of its divisors is an integer number (1366365).

Almost surely, 2^30121060 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 30121060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32792760).

30121060 is an abundant number, since it is smaller than the sum of its proper divisors (35464460).

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

30121060 is a wasteful number, since it uses less digits than its factorization.

30121060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30121060 is about 5488.2656641238. The cubic root of 30121060 is about 311.1406469502.

Adding to 30121060 its reverse (6012103), we get a palindrome (36133163).

The spelling of 30121060 in words is "thirty million, one hundred twenty-one thousand, sixty".