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1312103012023 = 17617125217069
BaseRepresentation
bin10011000101111111011…
…011110001011010110111
311122102202201022011111201
4103011333123301122313
5132444141332341043
62442434413113331
7163540064403616
oct23057733613267
94572681264451
101312103012023
11466506a42271
12192364788847
13969666b870b
1447712b3d87d
15241e6742c4d
hex1317f6f16b7

1312103012023 has 32 divisors (see below), whose sum is σ = 1432719550080. Its totient is φ = 1196923392000.

The previous prime is 1312103012009. The next prime is 1312103012029. The reversal of 1312103012023 is 3202103012131.

It is a cyclic number.

It is not a de Polignac number, because 1312103012023 - 29 = 1312103011511 is a prime.

It is a super-2 number, since 2×13121030120232 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312103012029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185610133 + ... + 185617201.

It is an arithmetic number, because the mean of its divisors is an integer number (44772485940).

Almost surely, 21312103012023 is an apocalyptic number.

1312103012023 is a deficient number, since it is larger than the sum of its proper divisors (120616538057).

1312103012023 is a wasteful number, since it uses less digits than its factorization.

1312103012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9739.

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

Adding to 1312103012023 its reverse (3202103012131), we get a palindrome (4514206024154).

The spelling of 1312103012023 in words is "one trillion, three hundred twelve billion, one hundred three million, twelve thousand, twenty-three".

Divisors: 1 17 61 71 1037 1207 2521 4331 7069 42857 73627 120173 153781 178991 431209 501899 2614277 3042847 7330553 8532283 10918451 17820949 30615839 185613667 302956133 520469263 1087077889 1265287379 18480324113 21509885443 77182530119 1312103012023