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131212231013122 = 2710159992247977
BaseRepresentation
bin11101110101011000111010…
…011010110111001100000010
3122012120202200222112020112021
4131311120322122313030002
5114144240122114404442
61143022022231352054
736431525255254060
oct3565307232671402
9565522628466467
10131212231013122
1138898881790526
121287198682262a
13582a34cb29b5c
1424589c4c7b030
1510281e7e37e67
hex77563a6b7302

131212231013122 has 16 divisors (see below), whose sum is σ = 224937469555200. Its totient is φ = 56233259193888.

The previous prime is 131212231013093. The next prime is 131212231013207. The reversal of 131212231013122 is 221310132212131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44701603 + ... + 47546374.

It is an arithmetic number, because the mean of its divisors is an integer number (14058591847200).

Almost surely, 2131212231013122 is an apocalyptic number.

131212231013122 is a deficient number, since it is larger than the sum of its proper divisors (93725238542078).

131212231013122 is a wasteful number, since it uses less digits than its factorization.

131212231013122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92349585.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 131212231013122 its reverse (221310132212131), we get a palindrome (352522363225253).

The spelling of 131212231013122 in words is "one hundred thirty-one trillion, two hundred twelve billion, two hundred thirty-one million, thirteen thousand, one hundred twenty-two".

Divisors: 1 2 7 14 101599 203198 711193 1422386 92247977 184495954 645735839 1291471678 9372302215223 18744604430446 65606115506561 131212231013122