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123011102401 = 1125967257177
BaseRepresentation
bin111001010010000001…
…0000111011011000001
3102202111212002110110121
41302210002013123001
54003411320234101
6132302134500241
711613221055415
oct1624402073301
9382455073417
10123011102401
1148194618a00
121ba10204681
13b7a4c88175
145d4d1dcd45
1532ee4de0a1
hex1ca40876c1

123011102401 has 24 divisors (see below), whose sum is σ = 139555069920. Its totient is φ = 108291670080.

The previous prime is 123011102381. The next prime is 123011102443. The reversal of 123011102401 is 104201110321.

It is not a de Polignac number, because 123011102401 - 213 = 123011094209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123011102701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349725 + ... + 606901.

It is an arithmetic number, because the mean of its divisors is an integer number (5814794580).

Almost surely, 2123011102401 is an apocalyptic number.

123011102401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123011102401 is a deficient number, since it is larger than the sum of its proper divisors (16543967519).

123011102401 is a wasteful number, since it uses less digits than its factorization.

123011102401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257325 (or 257314 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123011102401 its reverse (104201110321), we get a palindrome (227212212722).

The spelling of 123011102401 in words is "one hundred twenty-three billion, eleven million, one hundred two thousand, four hundred one".

Divisors: 1 11 59 67 121 649 737 3953 7139 8107 43483 257177 478313 2828947 15173443 17230859 31118417 166907873 189539449 1016620681 1835986603 2084933939 11182827491 123011102401