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123130031322 = 2389271384991
BaseRepresentation
bin111001010101100011…
…1110010110011011010
3102202211010212200021110
41302223013302303122
54004132242000242
6132322023521150
711616163666104
oct1625307626332
9382733780243
10123130031322
1148245768a71
121ba43bb91b6
13b7c37c86cc
145d60d1a574
153309b8239c
hex1cab1f2cda

123130031322 has 32 divisors (see below), whose sum is σ = 249121751040. Its totient is φ = 40566746880.

The previous prime is 123130031281. The next prime is 123130031333. The reversal of 123130031322 is 223130031321.

123130031322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1231300313222 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1406247 + ... + 1491237.

It is an arithmetic number, because the mean of its divisors is an integer number (7785054720).

Almost surely, 2123130031322 is an apocalyptic number.

123130031322 is an abundant number, since it is smaller than the sum of its proper divisors (125991719718).

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

123130031322 is a wasteful number, since it uses less digits than its factorization.

123130031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87798.

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

Adding to 123130031322 its reverse (223130031321), we get a palindrome (346260062643).

Subtracting 123130031322 from its reverse (223130031321), we obtain a palindrome (99999999999).

The spelling of 123130031322 in words is "one hundred twenty-three billion, one hundred thirty million, thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 89 178 267 534 2713 5426 8139 16278 84991 169982 241457 254973 482914 509946 724371 1448742 7564199 15128398 22692597 45385194 230580583 461161166 691741749 1383483498 20521671887 41043343774 61565015661 123130031322