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1312102322121 = 3636596870473
BaseRepresentation
bin10011000101111111011…
…001001000111111001001
311122102202200000010010210
4103011333121020333021
5132444141143301441
62442434350231333
7163540055501343
oct23057731107711
94572680003123
101312102322121
114665066109a8
121923644b5549
13969665066a6
1447712a00293
15241e6658616
hex1317f648fc9

1312102322121 has 8 divisors (see below), whose sum is σ = 1749497499360. Its totient is φ = 874721013152.

The previous prime is 1312102322093. The next prime is 1312102322159. The reversal of 1312102322121 is 1212232012131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312102322121 - 210 = 1312102321097 is a prime.

It is a super-2 number, since 2×13121023221212 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312102322161) 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 7 ways as a sum of consecutive naturals, for example, 3244260 + ... + 3626213.

It is an arithmetic number, because the mean of its divisors is an integer number (218687187420).

Almost surely, 21312102322121 is an apocalyptic number.

It is an amenable number.

1312102322121 is a deficient number, since it is larger than the sum of its proper divisors (437395177239).

1312102322121 is an equidigital number, since it uses as much as digits as its factorization.

1312102322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934135.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1312102322121 its reverse (1212232012131), we get a palindrome (2524334334252).

The spelling of 1312102322121 in words is "one trillion, three hundred twelve billion, one hundred two million, three hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 3 63659 190977 6870473 20611419 437367440707 1312102322121