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131101314252241 = 304942998135209
BaseRepresentation
bin11101110011110001100111…
…010000111111110111010001
3122012012011102000001222122111
4131303301213100333313101
5114140430442422032431
61142455040132305321
736420520532326264
oct3563614720776721
9565164360058574
10131101314252241
11388558341003a3
1212854390a72241
13581ca547185b8
1424534a2016cdb
1510253a56027b1
hex773c6743fdd1

131101314252241 has 4 divisors (see below), whose sum is σ = 131144312390500. Its totient is φ = 131058316113984.

The previous prime is 131101314252239. The next prime is 131101314252247. The reversal of 131101314252241 is 142252413101131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86216406107841 + 44884908144400 = 9285279^2 + 6699620^2 .

It is a cyclic number.

It is not a de Polignac number, because 131101314252241 - 21 = 131101314252239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131101314252247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21499064556 + ... + 21499070653.

It is an arithmetic number, because the mean of its divisors is an integer number (32786078097625).

Almost surely, 2131101314252241 is an apocalyptic number.

It is an amenable number.

131101314252241 is a deficient number, since it is larger than the sum of its proper divisors (42998138259).

131101314252241 is an equidigital number, since it uses as much as digits as its factorization.

131101314252241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42998138258.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 131101314252241 its reverse (142252413101131), we get a palindrome (273353727353372).

The spelling of 131101314252241 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred fourteen million, two hundred fifty-two thousand, two hundred forty-one".

Divisors: 1 3049 42998135209 131101314252241