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12103255120013 = 58203720794649
BaseRepresentation
bin1011000000100000001000…
…1110001101100010001101
31120212001121122210200020122
42300020002032031202031
53041244431302320023
641424054133354325
72356300642031561
oct260100216154215
946761548720218
1012103255120013
113946a63a90832
1214358377989a5
1369a4416c9835
142dbb2d0956a1
1515ec77ce52c8
hexb020238d88d

12103255120013 has 4 divisors (see below), whose sum is σ = 12103276496700. Its totient is φ = 12103233743328.

The previous prime is 12103255120007. The next prime is 12103255120037. The reversal of 12103255120013 is 31002155230121.

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 7049332983364 + 5053922136649 = 2655058^2 + 2248093^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103255120013 - 214 = 12103255103629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103255120093) 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, 9815288 + ... + 10979361.

It is an arithmetic number, because the mean of its divisors is an integer number (3025819124175).

Almost surely, 212103255120013 is an apocalyptic number.

It is an amenable number.

12103255120013 is a deficient number, since it is larger than the sum of its proper divisors (21376687).

12103255120013 is an equidigital number, since it uses as much as digits as its factorization.

12103255120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21376686.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 12103255120013 in words is "twelve trillion, one hundred three billion, two hundred fifty-five million, one hundred twenty thousand, thirteen".

Divisors: 1 582037 20794649 12103255120013