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1230102123 = 31923938293
BaseRepresentation
bin100100101010001…
…1101111001101011
310011201122122212220
41021110131321223
510004401231443
6322021205123
742324460365
oct11124357153
93151578786
101230102123
115813a6a28
122a3b607a3
13167b03aa3
14b9527d35
1572ed4a83
hex4951de6b

1230102123 has 16 divisors (see below), whose sum is σ = 1801524480. Its totient is φ = 743127264.

The previous prime is 1230102101. The next prime is 1230102143. The reversal of 1230102123 is 3212010321.

It is not a de Polignac number, because 1230102123 - 25 = 1230102091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230102143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467836 + ... + 470457.

It is an arithmetic number, because the mean of its divisors is an integer number (112595280).

Almost surely, 21230102123 is an apocalyptic number.

1230102123 is a deficient number, since it is larger than the sum of its proper divisors (571422357).

1230102123 is a wasteful number, since it uses less digits than its factorization.

1230102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938338.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1230102123 is about 35072.8117350178. The cubic root of 1230102123 is about 1071.4709216606.

Adding to 1230102123 its reverse (3212010321), we get a palindrome (4442112444).

The spelling of 1230102123 in words is "one billion, two hundred thirty million, one hundred two thousand, one hundred twenty-three".

Divisors: 1 3 19 23 57 69 437 1311 938293 2814879 17827567 21580739 53482701 64742217 410034041 1230102123