30041806921 has 24 divisors (see below), whose sum is σ = 36496002816. Its totient is φ = 24219402240.

The previous prime is 30041806913. The next prime is 30041806961. The reversal of 30041806921 is 12960814003.

It is not a de Polignac number, because 30041806921 - 2³ = 30041806913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30041806901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3781065 + ... + 3789001.

It is an arithmetic number, because the mean of its divisors is an integer number (1520666784).

Almost surely, 2^30041806921 is an apocalyptic number.

It is an amenable number.

30041806921 is a deficient number, since it is larger than the sum of its proper divisors (6454195895).

30041806921 is a wasteful number, since it uses less digits than its factorization.

30041806921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9849 (or 9832 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 30041806921 in words is "thirty billion, forty-one million, eight hundred six thousand, nine hundred twenty-one".