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1230303320123 = 23538571177681
BaseRepresentation
bin10001111001110011110…
…010101101100000111011
311100121121221202021100012
4101321303302231200323
5130124130122220443
62341105445532135
7154613030450063
oct21716362554073
94317557667305
101230303320123
11434850172009
1217a53611404b
138c02b770b67
1443792d6c3a3
152200a27c118
hex11e73cad83b

1230303320123 has 16 divisors (see below), whose sum is σ = 1309544698176. Its totient is φ = 1153259627520.

The previous prime is 1230303320069. The next prime is 1230303320131. The reversal of 1230303320123 is 3210233030321.

It is a cyclic number.

It is not a de Polignac number, because 1230303320123 - 224 = 1230286542907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230303320143) 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 15 ways as a sum of consecutive naturals, for example, 455843 + ... + 1633523.

It is an arithmetic number, because the mean of its divisors is an integer number (81846543636).

Almost surely, 21230303320123 is an apocalyptic number.

1230303320123 is a deficient number, since it is larger than the sum of its proper divisors (79241378053).

1230303320123 is a wasteful number, since it uses less digits than its factorization.

1230303320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178614.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1230303320123 its reverse (3210233030321), we get a palindrome (4440536350444).

The spelling of 1230303320123 in words is "one trillion, two hundred thirty billion, three hundred three million, three hundred twenty thousand, one hundred twenty-three".

Divisors: 1 23 53 857 1219 19711 45421 1044683 1177681 27086663 62417093 1009272617 1435593139 23213270191 53491448701 1230303320123