30030021303021 has 40 divisors (see below), whose sum is σ = 44949283255800. Its totient is φ = 19980045066240.

The previous prime is 30030021302989. The next prime is 30030021303031. The reversal of 30030021303021 is 12030312003003.

30030021303021 is a `hidden beast` number, since 30 + 0 + 300 + 2 + 1 + 30 + 302 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16490462114025 + 13539559188996 = 4060845^2 + 3679614^2 .

It is not a de Polignac number, because 30030021303021 - 2⁵ = 30030021302989 is a prime.

It is a super-3 number, since 3×30030021303021³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30030021302985 and 30030021303003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030021303031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 119760345 + ... + 120010833.

It is an arithmetic number, because the mean of its divisors is an integer number (1123732081395).

Almost surely, 2^{30030021303021} is an apocalyptic number.

It is an amenable number.

30030021303021 is a deficient number, since it is larger than the sum of its proper divisors (14919261952779).

30030021303021 is a wasteful number, since it uses less digits than its factorization.

30030021303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253451 (or 253442 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30030021303021 its reverse (12030312003003), we get a palindrome (42060333306024).

The spelling of 30030021303021 in words is "thirty trillion, thirty billion, twenty-one million, three hundred three thousand, twenty-one".