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12123023003 = 713137972409
BaseRepresentation
bin10110100101001011…
…01010011010011011
31011021212121101011222
423102211222122123
5144311443214003
65322542242255
7606263665250
oct132245523233
934255541158
1012123023003
115161148683
122423b8638b
1311b27a96c0
148300c3427
154ae471c38
hex2d296a69b

12123023003 has 16 divisors (see below), whose sum is σ = 15029568960. Its totient is φ = 9521819136.

The previous prime is 12123022997. The next prime is 12123023009. The reversal of 12123023003 is 30032032121.

It is an interprime number because it is at equal distance from previous prime (12123022997) and next prime (12123023009).

It is a cyclic number.

It is not a de Polignac number, because 12123023003 - 220 = 12121974427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123023009) 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, 473738 + ... + 498671.

It is an arithmetic number, because the mean of its divisors is an integer number (939348060).

Almost surely, 212123023003 is an apocalyptic number.

12123023003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12123023003 is a deficient number, since it is larger than the sum of its proper divisors (2906545957).

12123023003 is a wasteful number, since it uses less digits than its factorization.

12123023003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972566.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12123023003 its reverse (30032032121), we get a palindrome (42155055124).

The spelling of 12123023003 in words is "twelve billion, one hundred twenty-three million, twenty-three thousand, three".

Divisors: 1 7 13 91 137 959 1781 12467 972409 6806863 12641317 88489219 133220033 932540231 1731860429 12123023003