30068871021 has 48 divisors (see below), whose sum is σ = 53316432000. Its totient is φ = 16277853312.

The previous prime is 30068871013. The next prime is 30068871047. The reversal of 30068871021 is 12017886003.

It is not a de Polignac number, because 30068871021 - 2³ = 30068871013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068871071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197676 + ... + 314981.

It is an arithmetic number, because the mean of its divisors is an integer number (1110759000).

Almost surely, 2^30068871021 is an apocalyptic number.

It is an amenable number.

30068871021 is a deficient number, since it is larger than the sum of its proper divisors (23247560979).

30068871021 is a wasteful number, since it uses less digits than its factorization.

30068871021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512703 (or 512686 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 30068871021 in words is "thirty billion, sixty-eight million, eight hundred seventy-one thousand, twenty-one".