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12123122230 = 251212312223
BaseRepresentation
bin10110100101001100…
…00010101000110110
31011021212210102022001
423102212002220312
5144312004402410
65322544325514
7606264560452
oct132246025066
934255712261
1012123122230
11516120618a
12242401389a
1311b281290b
1483010b662
154ae49133a
hex2d2982a36

12123122230 has 8 divisors (see below), whose sum is σ = 21821620032. Its totient is φ = 4849248888.

The previous prime is 12123122201. The next prime is 12123122239. The reversal of 12123122230 is 3222132121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12123122198 and 12123122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123122239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606156102 + ... + 606156121.

It is an arithmetic number, because the mean of its divisors is an integer number (2727702504).

Almost surely, 212123122230 is an apocalyptic number.

12123122230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123122230 is a deficient number, since it is larger than the sum of its proper divisors (9698497802).

12123122230 is a wasteful number, since it uses less digits than its factorization.

12123122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212312230.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12123122230 its reverse (3222132121), we get a palindrome (15345254351).

The spelling of 12123122230 in words is "twelve billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 1212312223 2424624446 6061561115 12123122230