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131222231322302 = 2191343513694561
BaseRepresentation
bin11101110101100010001110…
…011111000000111010111110
3122012121201111220212120202202
4131311202032133000322332
5114144421112204303202
61143030354424551502
736432331135424321
oct3565421637007276
9565551456776682
10131222231322302
11388a204369685a
12128738b7922592
13582b2848c4c73
1424592930807b8
1510285d0d57802
hex77588e7c0ebe

131222231322302 has 8 divisors (see below), whose sum is σ = 197863888067712. Its totient is φ = 65267601966400.

The previous prime is 131222231322277. The next prime is 131222231322317. The reversal of 131222231322302 is 203223132222131.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 171756846899 + ... + 171756847662.

It is an arithmetic number, because the mean of its divisors is an integer number (24732986008464).

Almost surely, 2131222231322302 is an apocalyptic number.

131222231322302 is a deficient number, since it is larger than the sum of its proper divisors (66641656745410).

131222231322302 is a wasteful number, since it uses less digits than its factorization.

131222231322302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343513694754.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 131222231322302 its reverse (203223132222131), we get a palindrome (334445363544433).

The spelling of 131222231322302 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred two".

Divisors: 1 2 191 382 343513694561 687027389122 65611115661151 131222231322302