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13123022893 is a prime number
BaseRepresentation
bin11000011100011000…
…10111000000101101
31020212120021122010221
430032030113000231
5203333443213033
610010103531341
7643125565651
oct141614270055
936776248127
1013123022893
115624671372
122662a59b51
131311a16806
148c6c30a61
1551c15312d
hex30e31702d

13123022893 has 2 divisors, whose sum is σ = 13123022894. Its totient is φ = 13123022892.

The previous prime is 13123022879. The next prime is 13123022911. The reversal of 13123022893 is 39822032131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11892556809 + 1230466084 = 109053^2 + 35078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13123022893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123022863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561511446 + 6561511447.

It is an arithmetic number, because the mean of its divisors is an integer number (6561511447).

Almost surely, 213123022893 is an apocalyptic number.

It is an amenable number.

13123022893 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123022893 is an equidigital number, since it uses as much as digits as its factorization.

13123022893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 13123022893 in words is "thirteen billion, one hundred twenty-three million, twenty-two thousand, eight hundred ninety-three".