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131110123203101 = 718730017600443
BaseRepresentation
bin11101110011111001110100…
…010100011110101000011101
3122012020000010220200001111202
4131303321310110132220131
5114141102013014444401
61142503054210525245
736421252035222620
oct3563716424365035
9565200126601452
10131110123203101
1138859544572579
121285602ab96825
135820829726763
142453a99cd9db7
15102571db4206b
hex773e7451ea1d

131110123203101 has 4 divisors (see below), whose sum is σ = 149840140803552. Its totient is φ = 112380105602652.

The previous prime is 131110123203083. The next prime is 131110123203139. The reversal of 131110123203101 is 101302321011131.

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 131110123203101 - 214 = 131110123186717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131110123203151) 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, 9365008800215 + ... + 9365008800228.

It is an arithmetic number, because the mean of its divisors is an integer number (37460035200888).

Almost surely, 2131110123203101 is an apocalyptic number.

It is an amenable number.

131110123203101 is a deficient number, since it is larger than the sum of its proper divisors (18730017600451).

131110123203101 is an equidigital number, since it uses as much as digits as its factorization.

131110123203101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18730017600450.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 131110123203101 its reverse (101302321011131), we get a palindrome (232412444214232).

The spelling of 131110123203101 in words is "one hundred thirty-one trillion, one hundred ten billion, one hundred twenty-three million, two hundred three thousand, one hundred one".

Divisors: 1 7 18730017600443 131110123203101