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13120203211 is a prime number
BaseRepresentation
bin11000011100000011…
…00110100111001011
31020212100222101021021
430032001212213023
5203332233000321
610005523253311
7643062613213
oct141601464713
936770871237
1013120203211
115623015955
122661b1a237
13131126a26b
148c66d9243
1551bc97941
hex30e0669cb

13120203211 has 2 divisors, whose sum is σ = 13120203212. Its totient is φ = 13120203210.

The previous prime is 13120203181. The next prime is 13120203223. The reversal of 13120203211 is 11230202131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13120203211 - 25 = 13120203179 is a prime.

It is not a weakly prime, because it can be changed into another prime (13120203241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560101605 + 6560101606.

It is an arithmetic number, because the mean of its divisors is an integer number (6560101606).

Almost surely, 213120203211 is an apocalyptic number.

13120203211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120203211 is an equidigital number, since it uses as much as digits as its factorization.

13120203211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13120203211 its reverse (11230202131), we get a palindrome (24350405342).

The spelling of 13120203211 in words is "thirteen billion, one hundred twenty million, two hundred three thousand, two hundred eleven".