30121420430 has 64 divisors (see below), whose sum is σ = 56475144000. Its totient is φ = 11553174528.

The previous prime is 30121420421. The next prime is 30121420447. The reversal of 30121420430 is 3402412103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45707441 + ... + 45708099.

It is an arithmetic number, because the mean of its divisors is an integer number (882424125).

Almost surely, 2^30121420430 is an apocalyptic number.

30121420430 is a deficient number, since it is larger than the sum of its proper divisors (26353723570).

30121420430 is a wasteful number, since it uses less digits than its factorization.

30121420430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30121420430 its reverse (3402412103), we get a palindrome (33523832533).

The spelling of 30121420430 in words is "thirty billion, one hundred twenty-one million, four hundred twenty thousand, four hundred thirty".