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131201421401001 = 3716561137725071
BaseRepresentation
bin11101110101001110110110…
…000111011101101110101001
3122012112201210122100001100210
4131311032312013131232221
5114144101002334313001
61143013033444051333
736430663350132660
oct3565166607355651
9565481718301323
10131201421401001
1138894234a6a996
121286b86a693b49
1358293194a2673
14245827b3a9dd7
151027cb3e54dd6
hex7753b61ddba9

131201421401001 has 16 divisors (see below), whose sum is σ = 199927187970048. Its totient is φ = 74971786112400.

The previous prime is 131201421400979. The next prime is 131201421401093. The reversal of 131201421401001 is 100104124102131.

It is not a de Polignac number, because 131201421401001 - 214 = 131201421384617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (131201421402001) 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 15 ways as a sum of consecutive naturals, for example, 15384705 + ... + 22340366.

It is an arithmetic number, because the mean of its divisors is an integer number (12495449248128).

Almost surely, 2131201421401001 is an apocalyptic number.

It is an amenable number.

131201421401001 is a deficient number, since it is larger than the sum of its proper divisors (68725766569047).

131201421401001 is a wasteful number, since it uses less digits than its factorization.

131201421401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37890692.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 131201421401001 its reverse (100104124102131), we get a palindrome (231305545503132).

The spelling of 131201421401001 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, four hundred one thousand, one".

Divisors: 1 3 7 21 165611 496833 1159277 3477831 37725071 113175213 264075497 792226491 6247686733381 18743060200143 43733807133667 131201421401001