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13131040021122 = 2359308312031571
BaseRepresentation
bin1011111100010100111011…
…1110011101101010000010
31201111022111202102022200010
42333011032332131222002
53210114332221133442
643532152211005350
72523454261403322
oct277051676355202
951438452368603
1013131040021122
11420292a848111
121580a72899856
1374333717045a
1433578d699282
1517b87d984b9c
hexbf14ef9da82

13131040021122 has 32 divisors (see below), whose sum is σ = 26715864994560. Its totient is φ = 4301430653840.

The previous prime is 13131040021103. The next prime is 13131040021133. The reversal of 13131040021122 is 22112004013131.

It is a super-2 number, since 2×131310400211222 (a number of 27 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, 4924404 + ... + 7107167.

It is an arithmetic number, because the mean of its divisors is an integer number (834870781080).

Almost surely, 213131040021122 is an apocalyptic number.

13131040021122 is an abundant number, since it is smaller than the sum of its proper divisors (13584824973438).

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

13131040021122 is a wasteful number, since it uses less digits than its factorization.

13131040021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12034718.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13131040021122 its reverse (22112004013131), we get a palindrome (35243044034253).

The spelling of 13131040021122 in words is "thirteen trillion, one hundred thirty-one billion, forty million, twenty-one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 59 118 177 354 3083 6166 9249 18498 181897 363794 545691 1091382 12031571 24063142 36094713 72189426 709862689 1419725378 2129588067 4259176134 37093333393 74186666786 111280000179 222560000358 2188506670187 4377013340374 6565520010561 13131040021122