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30301201321 = 271111812551
BaseRepresentation
bin11100001110000101…
…111010001110101001
32220012202001111220121
4130032011322032221
5444024101420241
621530431523241
72121614650546
oct341605721651
986182044817
1030301201321
111193a269046
125a57989521
132b1b8c3931
141676451bcd
15bc52c3ad1
hex70e17a3a9

30301201321 has 4 divisors (see below), whose sum is σ = 30413014144. Its totient is φ = 30189388500.

The previous prime is 30301201313. The next prime is 30301201327. The reversal of 30301201321 is 12310210303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12310210303 = 72716932889.

It is a cyclic number.

It is not a de Polignac number, because 30301201321 - 23 = 30301201313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30301201295 and 30301201304.

It is not an unprimeable number, because it can be changed into a prime (30301201327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55906005 + ... + 55906546.

It is an arithmetic number, because the mean of its divisors is an integer number (7603253536).

Almost surely, 230301201321 is an apocalyptic number.

It is an amenable number.

30301201321 is a deficient number, since it is larger than the sum of its proper divisors (111812823).

30301201321 is a wasteful number, since it uses less digits than its factorization.

30301201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111812822.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30301201321 its reverse (12310210303), we get a palindrome (42611411624).

The spelling of 30301201321 in words is "thirty billion, three hundred one million, two hundred one thousand, three hundred twenty-one".

Divisors: 1 271 111812551 30301201321