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1230123103 = 11157712289
BaseRepresentation
bin100100101010010…
…0011000001011111
310011201200201122221
41021110203001133
510004402414403
6322021450211
742324605506
oct11124430137
93151621587
101230123103
11581410770
122a3b70967
13167b104c1
14b953183d
1572edadbd
hex4952305f

1230123103 has 8 divisors (see below), whose sum is σ = 1350501840. Its totient is φ = 1111169280.

The previous prime is 1230123071. The next prime is 1230123107. The reversal of 1230123103 is 3013210321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230123103 - 25 = 1230123071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230123107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354418 + ... + 357871.

It is an arithmetic number, because the mean of its divisors is an integer number (168812730).

Almost surely, 21230123103 is an apocalyptic number.

1230123103 is a deficient number, since it is larger than the sum of its proper divisors (120378737).

1230123103 is a wasteful number, since it uses less digits than its factorization.

1230123103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712457.

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

The square root of 1230123103 is about 35073.1108258164. The cubic root of 1230123103 is about 1071.4770131148.

Adding to 1230123103 its reverse (3013210321), we get a palindrome (4243333424).

The spelling of 1230123103 in words is "one billion, two hundred thirty million, one hundred twenty-three thousand, one hundred three".

Divisors: 1 11 157 1727 712289 7835179 111829373 1230123103