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123013123230 = 23511343398363
BaseRepresentation
bin111001010010000100…
…1110100110010011110
3102202111222220010112010
41302210021310302132
54003412324420410
6132302250052050
711613244203144
oct1624411646236
9382458803463
10123013123230
1148195779208
121ba10a1a026
13b7a5514c1a
145d4d5a7594
1532ee78cc20
hex1ca4274c9e

123013123230 has 64 divisors (see below), whose sum is σ = 297948430080. Its totient is φ = 32501822976.

The previous prime is 123013123229. The next prime is 123013123231. The reversal of 123013123230 is 32321310321.

It is an interprime number because it is at equal distance from previous prime (123013123229) and next prime (123013123231).

It is a junction number, because it is equal to n+sod(n) for n = 123013123197 and 123013123206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013123231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14705029 + ... + 14713391.

It is an arithmetic number, because the mean of its divisors is an integer number (4655444220).

Almost surely, 2123013123230 is an apocalyptic number.

123013123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123013123230 is an abundant number, since it is smaller than the sum of its proper divisors (174935306850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123013123230 is a wasteful number, since it uses less digits than its factorization.

123013123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12825.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123013123230 its reverse (32321310321), we get a palindrome (155334433551).

The spelling of 123013123230 in words is "one hundred twenty-three billion, thirteen million, one hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 113 226 339 565 678 1130 1695 3390 4339 8363 8678 13017 16726 21695 25089 26034 41815 43390 50178 65085 83630 125445 130170 250890 490307 945019 980614 1470921 1890038 2451535 2835057 2941842 4725095 4903070 5670114 7354605 9450190 14175285 14709210 28350570 36287057 72574114 108861171 181435285 217722342 362870570 544305855 1088611710 4100437441 8200874882 12301312323 20502187205 24602624646 41004374410 61506561615 123013123230