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131111120222300 = 22521311111202223
BaseRepresentation
bin11101110011111010101111…
…101111110011100001011100
3122012020002201101201212201202
4131303322233233303201130
5114141111033234103200
61142503341144255032
736421315532600261
oct3563725757634134
9565202641655652
10131111120222300
1138859a0633a889
1212856268a71478
13582095815bc4a
142453b524ad268
15102577b4351d5
hex773eafbf385c

131111120222300 has 18 divisors (see below), whose sum is σ = 284511130882608. Its totient is φ = 52444448088880.

The previous prime is 131111120222279. The next prime is 131111120222309. The reversal of 131111120222300 is 3222021111131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131111120222309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655555601012 + ... + 655555601211.

Almost surely, 2131111120222300 is an apocalyptic number.

131111120222300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131111120222300 is an abundant number, since it is smaller than the sum of its proper divisors (153400010660308).

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

131111120222300 is a wasteful number, since it uses less digits than its factorization.

131111120222300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311111202237 (or 1311111202230 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131111120222300 its reverse (3222021111131), we get a palindrome (134333141333431).

The spelling of 131111120222300 in words is "one hundred thirty-one trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty-two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1311111202223 2622222404446 5244444808892 6555556011115 13111112022230 26222224044460 32777780055575 65555560111150 131111120222300