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1300312012123 = 28143691105913
BaseRepresentation
bin10010111011000000101…
…000101011010101011011
311121022022222110022101201
4102323000220223111123
5132301014333341443
62433204411055031
7162641641510615
oct22730050532533
94538288408351
101300312012123
11461506260553
12190013a41477
139580793c8b7
1446d14ba7db5
1523c5650834d
hex12ec0a2b55b

1300312012123 has 8 divisors (see below), whose sum is σ = 1304981645616. Its totient is φ = 1295642678400.

The previous prime is 1300312012091. The next prime is 1300312012133. The reversal of 1300312012123 is 3212102130031.

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 1300312012123 - 25 = 1300312012091 is a prime.

It is a super-2 number, since 2×13003120121232 (a number of 25 digits) contains 22 as substring.

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 1300312012123.

It is not an unprimeable number, because it can be changed into a prime (1300312012133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12224215 + ... + 12330127.

It is an arithmetic number, because the mean of its divisors is an integer number (163122705702).

Almost surely, 21300312012123 is an apocalyptic number.

1300312012123 is a deficient number, since it is larger than the sum of its proper divisors (4669633493).

1300312012123 is a wasteful number, since it uses less digits than its factorization.

1300312012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149885.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1300312012123 its reverse (3212102130031), we get a palindrome (4512414142154).

The spelling of 1300312012123 in words is "one trillion, three hundred billion, three hundred twelve million, twelve thousand, one hundred twenty-three".

Divisors: 1 281 43691 105913 12277171 29761553 4627444883 1300312012123