30030515021 has 16 divisors (see below), whose sum is σ = 33513811968. Its totient is φ = 26721792000.

The previous prime is 30030515003. The next prime is 30030515027. The reversal of 30030515021 is 12051503003.

It is a cyclic number.

It is not a de Polignac number, because 30030515021 - 2²² = 30026320717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30030514984 and 30030515002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030515027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41405 + ... + 248546.

It is an arithmetic number, because the mean of its divisors is an integer number (2094613248).

Almost surely, 2^30030515021 is an apocalyptic number.

30030515021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30030515021 is a deficient number, since it is larger than the sum of its proper divisors (3483296947).

30030515021 is a wasteful number, since it uses less digits than its factorization.

30030515021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290252.

The product of its (nonzero) digits is 450, while the sum is 20.

The spelling of 30030515021 in words is "thirty billion, thirty million, five hundred fifteen thousand, twenty-one".