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131124420241 = 1163112746707
BaseRepresentation
bin111101000011110011…
…1111101111010010001
3110112110021201201012221
41322013213331322101
54122020322421431
6140123203221041
712321246116323
oct1720747757221
9415407651187
10131124420241
1150678353761
12214b5377781
13c498b25859
1464bc963613
153626920111
hex1e879fde91

131124420241 has 4 divisors (see below), whose sum is σ = 131237168112. Its totient is φ = 131011672372.

The previous prime is 131124420239. The next prime is 131124420269. The reversal of 131124420241 is 142024421131.

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 131124420241 - 21 = 131124420239 is a prime.

It is a super-2 number, since 2×1311244202412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131124420221) 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 3 ways as a sum of consecutive naturals, for example, 56372191 + ... + 56374516.

It is an arithmetic number, because the mean of its divisors is an integer number (32809292028).

Almost surely, 2131124420241 is an apocalyptic number.

It is an amenable number.

131124420241 is a deficient number, since it is larger than the sum of its proper divisors (112747871).

131124420241 is a wasteful number, since it uses less digits than its factorization.

131124420241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112747870.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 131124420241 its reverse (142024421131), we get a palindrome (273148841372).

The spelling of 131124420241 in words is "one hundred thirty-one billion, one hundred twenty-four million, four hundred twenty thousand, two hundred forty-one".

Divisors: 1 1163 112746707 131124420241