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123201311330 = 2579155951027
BaseRepresentation
bin111001010111101011…
…1101101001001100010
3102210000010000002001202
41302233113231021202
54004304013430310
6132333051401202
711621020603406
oct1625727551142
9383003002052
10123201311330
1148281a23769
121ba63a53202
13b8054c4a26
145d6a593106
1533110623a5
hex1caf5ed262

123201311330 has 16 divisors (see below), whose sum is σ = 224569480320. Its totient is φ = 48656720112.

The previous prime is 123201311237. The next prime is 123201311341. The reversal of 123201311330 is 33113102321.

It is a super-2 number, since 2×1232013113302 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77974724 + ... + 77976303.

It is an arithmetic number, because the mean of its divisors is an integer number (14035592520).

Almost surely, 2123201311330 is an apocalyptic number.

123201311330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123201311330 is a deficient number, since it is larger than the sum of its proper divisors (101368168990).

123201311330 is a wasteful number, since it uses less digits than its factorization.

123201311330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155951113.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123201311330 its reverse (33113102321), we get a palindrome (156314413651).

The spelling of 123201311330 in words is "one hundred twenty-three billion, two hundred one million, three hundred eleven thousand, three hundred thirty".

Divisors: 1 2 5 10 79 158 395 790 155951027 311902054 779755135 1559510270 12320131133 24640262266 61600655665 123201311330