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13123023031 is a prime number
BaseRepresentation
bin11000011100011000…
…10111000010110111
31020212120021122100001
430032030113002313
5203333443214111
610010103532131
7643125566236
oct141614270267
936776248301
1013123023031
115624671488
122662a5a047
131311a168b1
148c6c30b1d
1551c1531c1
hex30e3170b7

13123023031 has 2 divisors, whose sum is σ = 13123023032. Its totient is φ = 13123023030.

The previous prime is 13123023029. The next prime is 13123023041. The reversal of 13123023031 is 13032032131.

13123023031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13123023031 - 21 = 13123023029 is a prime.

It is a super-2 number, since 2×131230230312 (a number of 21 digits) contains 22 as substring.

Together with 13123023029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123023041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561511515 + 6561511516.

It is an arithmetic number, because the mean of its divisors is an integer number (6561511516).

Almost surely, 213123023031 is an apocalyptic number.

13123023031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123023031 is an equidigital number, since it uses as much as digits as its factorization.

13123023031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13123023031 its reverse (13032032131), we get a palindrome (26155055162).

The spelling of 13123023031 in words is "thirteen billion, one hundred twenty-three million, twenty-three thousand, thirty-one".