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131222222301113 = 1207791086465547
BaseRepresentation
bin11101110101100010001101…
…111100100110011110111001
3122012121201111021220021000122
4131311202031330212132321
5114144421102402113423
61143030353503343025
736432330665642426
oct3565421574463671
9565551437807018
10131222222301113
11388a2039595029
12128738b48b1a75
13582b282a86a98
142459291bb2d4d
1510285d01748c8
hex77588df267b9

131222222301113 has 4 divisors (see below), whose sum is σ = 131223308887440. Its totient is φ = 131221135714788.

The previous prime is 131222222301101. The next prime is 131222222301251. The reversal of 131222222301113 is 311103222222131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131222222301113 - 28 = 131222222300857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222222301713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543111995 + ... + 543353552.

It is an arithmetic number, because the mean of its divisors is an integer number (32805827221860).

Almost surely, 2131222222301113 is an apocalyptic number.

It is an amenable number.

131222222301113 is a deficient number, since it is larger than the sum of its proper divisors (1086586327).

131222222301113 is a wasteful number, since it uses less digits than its factorization.

131222222301113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086586326.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131222222301113 its reverse (311103222222131), we get a palindrome (442325444523244).

The spelling of 131222222301113 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, two hundred twenty-two million, three hundred one thousand, one hundred thirteen".

Divisors: 1 120779 1086465547 131222222301113