30012011 has 4 divisors (see below), whose sum is σ = 30085800. Its totient is φ = 29938224.

The previous prime is 30011983. The next prime is 30012019. The reversal of 30012011 is 11021003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30012011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30012011.

It is not an unprimeable number, because it can be changed into a prime (30012019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36281 + ... + 37098.

It is an arithmetic number, because the mean of its divisors is an integer number (7521450).

Almost surely, 2^30012011 is an apocalyptic number.

30012011 is a deficient number, since it is larger than the sum of its proper divisors (73789).

30012011 is an equidigital number, since it uses as much as digits as its factorization.

30012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73788.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 30012011 is about 5478.3219146012. The cubic root of 30012011 is about 310.7647128065.

Adding to 30012011 its reverse (11021003), we get a palindrome (41033014).

The spelling of 30012011 in words is "thirty million, twelve thousand, eleven".