30520011 has 8 divisors (see below), whose sum is σ = 42462720. Its totient is φ = 19461992.

The previous prime is 30519959. The next prime is 30520019. The reversal of 30520011 is 11002503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30520011 - 2⁷ = 30519883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30520019) 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, 221091 + ... + 221228.

It is an arithmetic number, because the mean of its divisors is an integer number (5307840).

Almost surely, 2^30520011 is an apocalyptic number.

30520011 is a deficient number, since it is larger than the sum of its proper divisors (11942709).

30520011 is a wasteful number, since it uses less digits than its factorization.

30520011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442345.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 30520011 is about 5524.4919223400. The cubic root of 30520011 is about 312.5083039927.

Adding to 30520011 its reverse (11002503), we get a palindrome (41522514).

The spelling of 30520011 in words is "thirty million, five hundred twenty thousand, eleven".