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30132123211 = 101807295973
BaseRepresentation
bin11100000100000000…
…111011011001001011
32212202221220110100101
4130010000323121023
5443202310420321
621501551550231
72114462551501
oct340400733113
985687813311
1030132123211
1111862886173
125a0b22b377
132ac2875108
14165bbdc671
15bb5526791
hex70403b64b

30132123211 has 4 divisors (see below), whose sum is σ = 30132520992. Its totient is φ = 30131725432.

The previous prime is 30132123191. The next prime is 30132123277. The reversal of 30132123211 is 11232123103.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 11232123103 = 53211926851.

It is a cyclic number.

It is not a de Polignac number, because 30132123211 - 25 = 30132123179 is a prime.

It is a super-3 number, since 3×301321232113 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30132120211) 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, 46180 + ... + 249793.

It is an arithmetic number, because the mean of its divisors is an integer number (7533130248).

Almost surely, 230132123211 is an apocalyptic number.

30132123211 is a deficient number, since it is larger than the sum of its proper divisors (397781).

30132123211 is a wasteful number, since it uses less digits than its factorization.

30132123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397780.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30132123211 its reverse (11232123103), we get a palindrome (41364246314).

The spelling of 30132123211 in words is "thirty billion, one hundred thirty-two million, one hundred twenty-three thousand, two hundred eleven".

Divisors: 1 101807 295973 30132123211