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1312010323 = 13100923871
BaseRepresentation
bin100111000110011…
…1011000001010011
310101102210000210221
41032030323001103
510141333312243
6334104533511
744340621661
oct11614730123
93342700727
101312010323
11613660858
12307481297
1317ba81890
14c6369c31
157a2b3bed
hex4e33b053

1312010323 has 4 divisors (see below), whose sum is σ = 1412934208. Its totient is φ = 1211086440.

The previous prime is 1312010267. The next prime is 1312010327. The reversal of 1312010323 is 3230102131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3230102131 = 19916231669.

It is a cyclic number.

It is not a de Polignac number, because 1312010323 - 217 = 1311879251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312010297 and 1312010306.

It is not an unprimeable number, because it can be changed into a prime (1312010327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50461923 + ... + 50461948.

It is an arithmetic number, because the mean of its divisors is an integer number (353233552).

Almost surely, 21312010323 is an apocalyptic number.

1312010323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312010323 is a deficient number, since it is larger than the sum of its proper divisors (100923885).

1312010323 is a wasteful number, since it uses less digits than its factorization.

1312010323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100923884.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1312010323 is about 36221.6830503498. The cubic root of 1312010323 is about 1094.7436061434.

Adding to 1312010323 its reverse (3230102131), we get a palindrome (4542112454).

The spelling of 1312010323 in words is "one billion, three hundred twelve million, ten thousand, three hundred twenty-three".

Divisors: 1 13 100923871 1312010323