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1230313202123 = 79971311225591
BaseRepresentation
bin10001111001110100011…
…000011010000111001011
311100121122122100022220012
4101321310120122013023
5130124140134431443
62341110441422135
7154613210445425
oct21716430320713
94317578308805
101230313202123
11434855801555
1217a53949a94b
138c030820ab5
14437943c1815
152200b080118
hex11e7461a1cb

1230313202123 has 16 divisors (see below), whose sum is σ = 1268340648960. Its totient is φ = 1193038329600.

The previous prime is 1230313202081. The next prime is 1230313202143. The reversal of 1230313202123 is 3212023130321.

It is a cyclic number.

It is not a de Polignac number, because 1230313202123 - 218 = 1230312939979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230313202143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391058 + ... + 1616648.

It is an arithmetic number, because the mean of its divisors is an integer number (79271290560).

Almost surely, 21230313202123 is an apocalyptic number.

1230313202123 is a deficient number, since it is larger than the sum of its proper divisors (38027446837).

1230313202123 is a wasteful number, since it uses less digits than its factorization.

1230313202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225898.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1230313202123 its reverse (3212023130321), we get a palindrome (4442336332444).

The spelling of 1230313202123 in words is "one trillion, two hundred thirty billion, three hundred thirteen million, two hundred two thousand, one hundred twenty-three".

Divisors: 1 79 97 131 7663 10349 12707 1003853 1225591 96821689 118882327 160552421 9391703833 12683641259 15573584837 1230313202123