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13102120013 = 62213210601
BaseRepresentation
bin11000011001111001…
…00111110001001101
31020211002221122210012
430030330213301031
5203313120320023
610004035523005
7642453116423
oct141474476115
936732848705
1013102120013
115613894764
122657a59465
13130a5a8448
148c414d113
1551a3c4978
hex30cf27c4d

13102120013 has 4 divisors (see below), whose sum is σ = 13102392828. Its totient is φ = 13101847200.

The previous prime is 13102120007. The next prime is 13102120019. The reversal of 13102120013 is 31002120131.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13102120007) and next prime (13102120019).

It can be written as a sum of positive squares in 2 ways, for example, as 133010089 + 12969109924 = 11533^2 + 113882^2 .

It is a cyclic number.

It is not a de Polignac number, because 13102120013 - 216 = 13102054477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13102120013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102120019) 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, 43088 + ... + 167513.

It is an arithmetic number, because the mean of its divisors is an integer number (3275598207).

Almost surely, 213102120013 is an apocalyptic number.

It is an amenable number.

13102120013 is a deficient number, since it is larger than the sum of its proper divisors (272815).

13102120013 is an equidigital number, since it uses as much as digits as its factorization.

13102120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272814.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13102120013 its reverse (31002120131), we get a palindrome (44104240144).

The spelling of 13102120013 in words is "thirteen billion, one hundred two million, one hundred twenty thousand, thirteen".

Divisors: 1 62213 210601 13102120013