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123130033112 = 2331496492069
BaseRepresentation
bin111001010101100011…
…1110011001111011000
3102202211010212202201202
41302223013303033120
54004132242024422
6132322023533332
711616164004242
oct1625307631730
9382733782652
10123130033112
114824576a349
121ba43bba248
13b7c37c9478
145d60d1b092
153309b82b92
hex1cab1f33d8

123130033112 has 16 divisors (see below), whose sum is σ = 238316193600. Its totient is φ = 59579048160.

The previous prime is 123130033109. The next prime is 123130033141. The reversal of 123130033112 is 211330031321.

It is a super-2 number, since 2×1231300331122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248245787 + ... + 248246282.

It is an arithmetic number, because the mean of its divisors is an integer number (14894762100).

Almost surely, 2123130033112 is an apocalyptic number.

It is an amenable number.

123130033112 is a deficient number, since it is larger than the sum of its proper divisors (115186160488).

123130033112 is a wasteful number, since it uses less digits than its factorization.

123130033112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496492106 (or 496492102 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123130033112 its reverse (211330031321), we get a palindrome (334460064433).

The spelling of 123130033112 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-three thousand, one hundred twelve".

Divisors: 1 2 4 8 31 62 124 248 496492069 992984138 1985968276 3971936552 15391254139 30782508278 61565016556 123130033112