30331342021 has 8 divisors (see below), whose sum is σ = 31146404960. Its totient is φ = 29521264752.

The previous prime is 30331342001. The next prime is 30331342043. The reversal of 30331342021 is 12024313303.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30331342021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30331341983 and 30331342001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30331342001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234086 + ... + 1258423.

It is an arithmetic number, because the mean of its divisors is an integer number (3893300620).

Almost surely, 2^30331342021 is an apocalyptic number.

It is an amenable number.

30331342021 is a deficient number, since it is larger than the sum of its proper divisors (815062939).

30331342021 is a wasteful number, since it uses less digits than its factorization.

30331342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492835.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30331342021 its reverse (12024313303), we get a palindrome (42355655324).

The spelling of 30331342021 in words is "thirty billion, three hundred thirty-one million, three hundred forty-two thousand, twenty-one".