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123313113 = 327111071663
BaseRepresentation
bin1110101100110…
…01101111011001
322121000221210100
413112121233121
5223032004423
620123010013
73025100310
oct726315731
9277027710
10123313113
1163674a70
1235369909
131c716c51
141253d277
15ac5c343
hex7599bd9

123313113 has 48 divisors (see below), whose sum is σ = 224280576. Its totient is φ = 63421920.

The previous prime is 123313109. The next prime is 123313129. The reversal of 123313113 is 311313321.

It is a happy number.

It is not a de Polignac number, because 123313113 - 22 = 123313109 is a prime.

It is a super-2 number, since 2×1233131132 = 30412247675501538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123313163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73320 + ... + 74982.

It is an arithmetic number, because the mean of its divisors is an integer number (4672512).

Almost surely, 2123313113 is an apocalyptic number.

It is an amenable number.

123313113 is a deficient number, since it is larger than the sum of its proper divisors (100967463).

123313113 is a wasteful number, since it uses less digits than its factorization.

123313113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1791 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 123313113 is about 11104.6437583562. The cubic root of 123313113 is about 497.7406231440.

Adding to 123313113 its reverse (311313321), we get a palindrome (434626434).

It can be divided in two parts, 123 and 313113, that added together give a triangular number (313236 = T791).

The spelling of 123313113 in words is "one hundred twenty-three million, three hundred thirteen thousand, one hundred thirteen".

Divisors: 1 3 7 9 11 21 33 63 77 99 107 231 321 693 749 963 1177 1663 2247 3531 4989 6741 8239 10593 11641 14967 18293 24717 34923 54879 74151 104769 128051 164637 177941 384153 533823 1152459 1245587 1601469 1957351 3736761 5872053 11210283 13701457 17616159 41104371 123313113