30012108621 has 8 divisors (see below), whose sum is σ = 43653976224. Its totient is φ = 18189156720.

The previous prime is 30012108619. The next prime is 30012108631. The reversal of 30012108621 is 12680121003.

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

It is not a de Polignac number, because 30012108621 - 2¹ = 30012108619 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30012108591 and 30012108600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012108631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454728886 + ... + 454728951.

It is an arithmetic number, because the mean of its divisors is an integer number (5456747028).

Almost surely, 2^30012108621 is an apocalyptic number.

It is an amenable number.

30012108621 is a deficient number, since it is larger than the sum of its proper divisors (13641867603).

30012108621 is a wasteful number, since it uses less digits than its factorization.

30012108621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909457851.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 30012108621 its reverse (12680121003), we get a palindrome (42692229624).

It can be divided in two parts, 3001210 and 8621, that added together give a triangular number (3009831 = T₂₄₅₃).

The spelling of 30012108621 in words is "thirty billion, twelve million, one hundred eight thousand, six hundred twenty-one".