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30122011010021 = 76247688833749
BaseRepresentation
bin1101101100101010100111…
…10001000010001111100101
310221122122011201221021010012
412312111103301002033211
512422004334304310041
6144021505534340005
76226146341020460
oct666252361021745
9127578151837105
1030122011010021
119663744a32827
123465a2065a605
1313a6655157178
14761cad8162d7
153738215b93eb
hex1b6553c423e5

30122011010021 has 8 divisors (see below), whose sum is σ = 34430666160000. Its totient is φ = 25814733540048.

The previous prime is 30122011010017. The next prime is 30122011010029. The reversal of 30122011010021 is 12001011022103.

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

It is a cyclic number.

It is not a de Polignac number, because 30122011010021 - 22 = 30122011010017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30122011009978 and 30122011010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122011010029) 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, 344373146 + ... + 344460603.

It is an arithmetic number, because the mean of its divisors is an integer number (4303833270000).

Almost surely, 230122011010021 is an apocalyptic number.

It is an amenable number.

30122011010021 is a deficient number, since it is larger than the sum of its proper divisors (4308655149979).

30122011010021 is an equidigital number, since it uses as much as digits as its factorization.

30122011010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688840003.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 30122011010021 its reverse (12001011022103), we get a palindrome (42123022032124).

The spelling of 30122011010021 in words is "thirty trillion, one hundred twenty-two billion, eleven million, ten thousand, twenty-one".

Divisors: 1 7 6247 43729 688833749 4821836243 4303144430003 30122011010021