30121134342 has 32 divisors (see below), whose sum is σ = 65084947200. Its totient is φ = 9238233120.

The previous prime is 30121134341. The next prime is 30121134377. The reversal of 30121134342 is 24343112103.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121134341) by changing a digit.

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, 596592 + ... + 645107.

It is an arithmetic number, because the mean of its divisors is an integer number (2033904600).

Almost surely, 2^30121134342 is an apocalyptic number.

30121134342 is an abundant number, since it is smaller than the sum of its proper divisors (34963812858).

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

30121134342 is a wasteful number, since it uses less digits than its factorization.

30121134342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242028.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30121134342 its reverse (24343112103), we get a palindrome (54464246445).

The spelling of 30121134342 in words is "thirty billion, one hundred twenty-one million, one hundred thirty-four thousand, three hundred forty-two".