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131301233120021 = 1279371103380979
BaseRepresentation
bin11101110110101011110011…
…010110111101001100010101
3122012220021102200200201122212
4131312223303112331030111
5114202214411134320041
61143130542003403205
736441125646553226
oct3566536326751425
9565807380621585
10131301233120021
11389225a4097778
1212887085383505
135835864c9bc33
14245d02941924d
15102a6a689c8eb
hex776af35bd315

131301233120021 has 8 divisors (see below), whose sum is σ = 132476333982720. Its totient is φ = 130128339021408.

The previous prime is 131301233119999. The next prime is 131301233120069. The reversal of 131301233120021 is 120021332103131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131301233120021 - 230 = 131300159378197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131301233120521) 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 7 ways as a sum of consecutive naturals, for example, 551571491 + ... + 551809488.

It is an arithmetic number, because the mean of its divisors is an integer number (16559541747840).

Almost surely, 2131301233120021 is an apocalyptic number.

It is an amenable number.

131301233120021 is a deficient number, since it is larger than the sum of its proper divisors (1175100862699).

131301233120021 is a wasteful number, since it uses less digits than its factorization.

131301233120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103382043.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131301233120021 its reverse (120021332103131), we get a palindrome (251322565223152).

The spelling of 131301233120021 in words is "one hundred thirty-one trillion, three hundred one billion, two hundred thirty-three million, one hundred twenty thousand, twenty-one".

Divisors: 1 127 937 118999 1103380979 140129384333 1033867977323 131301233120021