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123130203023200 = 2552153912753779
BaseRepresentation
bin11011111111110001111100…
…000000110010011101100000
3121010222010120120000012111011
4123333301330000302131200
5112114331123433220300
61113513122343030304
734635602133654052
oct3377617400623540
9533863516005434
10123130203023200
113626225367738a
121198755ba3b394
135392188c06769
14225976839d8d2
15e37d74962eba
hex6ffc7c032760

123130203023200 has 36 divisors (see below), whose sum is σ = 300591608132340. Its totient is φ = 49252081208960.

The previous prime is 123130203023183. The next prime is 123130203023207. The reversal of 123130203023200 is 2320302031321.

It is a super-2 number, since 2×1231302030232002 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123130203023207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76956376090 + ... + 76956377689.

It is an arithmetic number, because the mean of its divisors is an integer number (8349766892565).

Almost surely, 2123130203023200 is an apocalyptic number.

123130203023200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123130203023200 is an abundant number, since it is smaller than the sum of its proper divisors (177461405109140).

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

123130203023200 is a wasteful number, since it uses less digits than its factorization.

123130203023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153912753799 (or 153912753786 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123130203023200 its reverse (2320302031321), we get a palindrome (125450505054521).

The spelling of 123130203023200 in words is "one hundred twenty-three trillion, one hundred thirty billion, two hundred three million, twenty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 153912753779 307825507558 615651015116 769563768895 1231302030232 1539127537790 2462604060464 3078255075580 3847818844475 4925208120928 6156510151160 7695637688950 12313020302320 15391275377900 24626040604640 30782550755800 61565101511600 123130203023200