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131111022203 = 723186314037
BaseRepresentation
bin111101000011011010…
…0110110111001111011
3110112102100112000120022
41322012310312321323
54122003410202303
6140122004121055
712321024205100
oct1720664667173
9415370460508
10131111022203
11506708325a7
12214b099618b
13c496114415
1464bac76aa7
153625675438
hex1e86d36e7b

131111022203 has 12 divisors (see below), whose sum is σ = 157436805312. Its totient is φ = 108755685360.

The previous prime is 131111022191. The next prime is 131111022209. The reversal of 131111022203 is 302220111131.

It is not a de Polignac number, because 131111022203 - 24 = 131111022187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131111022209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43155500 + ... + 43158537.

It is an arithmetic number, because the mean of its divisors is an integer number (13119733776).

Almost surely, 2131111022203 is an apocalyptic number.

131111022203 is a deficient number, since it is larger than the sum of its proper divisors (26325783109).

131111022203 is an equidigital number, since it uses as much as digits as its factorization.

131111022203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86314082 (or 86314075 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131111022203 its reverse (302220111131), we get a palindrome (433331133334).

The spelling of 131111022203 in words is "one hundred thirty-one billion, one hundred eleven million, twenty-two thousand, two hundred three".

Divisors: 1 7 31 49 217 1519 86314037 604198259 2675735147 4229387813 18730146029 131111022203