30012821192 has 32 divisors (see below), whose sum is σ = 59789469600. Its totient is φ = 14083726464.

The previous prime is 30012821171. The next prime is 30012821197. The reversal of 30012821192 is 29112821003.

It is not an unprimeable number, because it can be changed into a prime (30012821197) 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, 906413 + ... + 938940.

It is an arithmetic number, because the mean of its divisors is an integer number (1868420925).

Almost surely, 2^30012821192 is an apocalyptic number.

It is an amenable number.

30012821192 is a deficient number, since it is larger than the sum of its proper divisors (29776648408).

30012821192 is a wasteful number, since it uses less digits than its factorization.

30012821192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845485 (or 1845481 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 30012821192 in words is "thirty billion, twelve million, eight hundred twenty-one thousand, one hundred ninety-two".