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1213102310013 = 321117395374323
BaseRepresentation
bin10001101001110010100…
…010000100001001111101
311021222020012000102101200
4101221302202010021331
5124333413142410023
62325142544330113
7153433543333416
oct21516242041175
94258205012350
101213102310013
114285236a0580
12177135613939
138a519c2b779
1442a006c680d
15218500eb743
hex11a7288427d

1213102310013 has 48 divisors (see below), whose sum is σ = 1924647925824. Its totient is φ = 730186894080.

The previous prime is 1213102309889. The next prime is 1213102310023. The reversal of 1213102310013 is 3100132013121.

1213102310013 is a `hidden beast` number, since 121 + 310 + 231 + 0 + 0 + 1 + 3 = 666.

It is not a de Polignac number, because 1213102310013 - 29 = 1213102309501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213102310023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16284870 + ... + 16359192.

It is an arithmetic number, because the mean of its divisors is an integer number (40096831788).

Almost surely, 21213102310013 is an apocalyptic number.

It is an amenable number.

1213102310013 is a deficient number, since it is larger than the sum of its proper divisors (711545615811).

1213102310013 is a wasteful number, since it uses less digits than its factorization.

1213102310013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75466 (or 75463 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1213102310013 its reverse (3100132013121), we get a palindrome (4313234323134).

The spelling of 1213102310013 in words is "one trillion, two hundred thirteen billion, one hundred two million, three hundred ten thousand, thirteen".

Divisors: 1 3 9 11 33 99 173 519 953 1557 1903 2859 5709 8577 10483 17127 31449 74323 94347 164869 222969 494607 668907 817553 1483821 1813559 2452659 5440677 7357977 12857879 16322031 38573637 70829819 115720911 141436669 212489457 424310007 637468371 779128009 1272930021 2337384027 7012152081 12253558687 36760676061 110282028183 134789145557 404367436671 1213102310013