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13102230112021 = 109091201047769
BaseRepresentation
bin1011111010101001100111…
…0001011000011100010101
31201101120010221111022002201
42332222121301120130111
53204131331402041041
643511025330404501
72521414322252251
oct276523161303425
951346127438081
1013102230112021
1141a1696361a86
121577372430731
137406c551046b
14334219321261
1517ac4458a631
hexbea99c58715

13102230112021 has 4 divisors (see below), whose sum is σ = 13103431170700. Its totient is φ = 13101029053344.

The previous prime is 13102230112019. The next prime is 13102230112073. The reversal of 13102230112021 is 12021103220131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8688428292996 + 4413801819025 = 2947614^2 + 2100905^2 .

It is a cyclic number.

It is not a de Polignac number, because 13102230112021 - 21 = 13102230112019 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 13102230112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102230112921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600512976 + ... + 600534793.

It is an arithmetic number, because the mean of its divisors is an integer number (3275857792675).

Almost surely, 213102230112021 is an apocalyptic number.

It is an amenable number.

13102230112021 is a deficient number, since it is larger than the sum of its proper divisors (1201058679).

13102230112021 is a wasteful number, since it uses less digits than its factorization.

13102230112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201058678.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13102230112021 its reverse (12021103220131), we get a palindrome (25123333332152).

The spelling of 13102230112021 in words is "thirteen trillion, one hundred two billion, two hundred thirty million, one hundred twelve thousand, twenty-one".

Divisors: 1 10909 1201047769 13102230112021