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123130330310 = 25132399394813
BaseRepresentation
bin111001010101100100…
…0111011110011000110
3102202211011102212102002
41302223020323303012
54004132331032220
6132322034145302
711616166352561
oct1625310736306
9382734385362
10123130330310
1148245952669
121ba44122232
13b7c38a1820
145d60d974d8
153309be0c75
hex1cab23bcc6

123130330310 has 32 divisors (see below), whose sum is σ = 238783507200. Its totient is φ = 45444440448.

The previous prime is 123130330307. The next prime is 123130330313. The reversal of 123130330310 is 13033031321.

It is an interprime number because it is at equal distance from previous prime (123130330307) and next prime (123130330313).

It is a super-2 number, since 2×1231303303102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130330313) 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, 114464 + ... + 509276.

It is an arithmetic number, because the mean of its divisors is an integer number (7461984600).

Almost surely, 2123130330310 is an apocalyptic number.

123130330310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123130330310 is a deficient number, since it is larger than the sum of its proper divisors (115653176890).

123130330310 is a wasteful number, since it uses less digits than its factorization.

123130330310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397232.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 123130330310 its reverse (13033031321), we get a palindrome (136163361631).

The spelling of 123130330310 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred thirty thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 2399 4798 11995 23990 31187 62374 155935 311870 394813 789626 1974065 3948130 5132569 10265138 25662845 51325690 947156387 1894312774 4735781935 9471563870 12313033031 24626066062 61565165155 123130330310