30433148921 has 16 divisors (see below), whose sum is σ = 35456444928. Its totient is φ = 25579320000.

The previous prime is 30433148917. The next prime is 30433148959. The reversal of 30433148921 is 12984133403.

It is a cyclic number.

It is not a de Polignac number, because 30433148921 - 2² = 30433148917 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30433148981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683696 + ... + 726846.

It is an arithmetic number, because the mean of its divisors is an integer number (2216027808).

Almost surely, 2^30433148921 is an apocalyptic number.

It is an amenable number.

30433148921 is a deficient number, since it is larger than the sum of its proper divisors (5023296007).

30433148921 is a wasteful number, since it uses less digits than its factorization.

30433148921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45112.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 30433148921 in words is "thirty billion, four hundred thirty-three million, one hundred forty-eight thousand, nine hundred twenty-one".