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30122311103 = 34986310347
BaseRepresentation
bin11100000011011011…
…011111110110111111
32212202021102221122222
4130003123133312333
5443142302423403
621501001355555
72114313263663
oct340333376677
985667387588
1030122311103
1111858294195
125a07a98bbb
132ac081ac31
14165a7a68a3
15bb4739338
hex7036dfdbf

30122311103 has 4 divisors (see below), whose sum is σ = 30208621800. Its totient is φ = 30036000408.

The previous prime is 30122311099. The next prime is 30122311151. The reversal of 30122311103 is 30111322103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30111322103 = 30419901783.

It is a cyclic number.

It is not a de Polignac number, because 30122311103 - 22 = 30122311099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30122310103) 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, 43154825 + ... + 43155522.

It is an arithmetic number, because the mean of its divisors is an integer number (7552155450).

Almost surely, 230122311103 is an apocalyptic number.

30122311103 is a deficient number, since it is larger than the sum of its proper divisors (86310697).

30122311103 is an equidigital number, since it uses as much as digits as its factorization.

30122311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86310696.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30122311103 its reverse (30111322103), we get a palindrome (60233633206).

The spelling of 30122311103 in words is "thirty billion, one hundred twenty-two million, three hundred eleven thousand, one hundred three".

Divisors: 1 349 86310347 30122311103