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1312086958081 = 231011021553207
BaseRepresentation
bin10011000101111110011…
…110100010000000000001
311122102201121002112122021
4103011332132202000001
5132444123230124311
62442433041041441
7163536511061254
oct23057636420001
94572647075567
101312086958081
114664a8977749
1219235b326281
1396963287443
144771096109b
15241e5121171
hex1317e7a2001

1312086958081 has 16 divisors (see below), whose sum is σ = 1384046754048. Its totient is φ = 1241394264000.

The previous prime is 1312086958067. The next prime is 1312086958103. The reversal of 1312086958081 is 1808596802131.

It is a cyclic number.

It is not a de Polignac number, because 1312086958081 - 221 = 1312084860929 is a prime.

It is a super-2 number, since 2×13120869580812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312086958031) 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 in 15 ways as a sum of consecutive naturals, for example, 2095180 + ... + 2648386.

It is an arithmetic number, because the mean of its divisors is an integer number (86502922128).

Almost surely, 21312086958081 is an apocalyptic number.

It is an amenable number.

1312086958081 is a deficient number, since it is larger than the sum of its proper divisors (71959795967).

1312086958081 is a wasteful number, since it uses less digits than its factorization.

1312086958081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554352.

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 1312086958081 in words is "one trillion, three hundred twelve billion, eighty-six million, nine hundred fifty-eight thousand, eighty-one".

Divisors: 1 23 101 1021 2323 23483 103121 553207 2371783 12723761 55873907 564824347 1285099861 12990959981 57047259047 1312086958081