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131011121401 = 1719405607187
BaseRepresentation
bin111101000000011011…
…1110001000011111001
3110112011101112112102121
41322000313301003321
54121302321341101
6140104035001241
712315402105106
oct1720067610371
9415141475377
10131011121401
115061a3a9656
1221483439221
13c47b506b14
1464ab8adaad
15361b9e00a1
hex1e80df10f9

131011121401 has 8 divisors (see below), whose sum is σ = 146018587680. Its totient is φ = 116814869568.

The previous prime is 131011121341. The next prime is 131011121419. The reversal of 131011121401 is 104121110131.

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 131011121401 - 27 = 131011121273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011121431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202803271 + ... + 202803916.

It is an arithmetic number, because the mean of its divisors is an integer number (18252323460).

Almost surely, 2131011121401 is an apocalyptic number.

It is an amenable number.

131011121401 is a deficient number, since it is larger than the sum of its proper divisors (15007466279).

131011121401 is a wasteful number, since it uses less digits than its factorization.

131011121401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405607223.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 131011121401 its reverse (104121110131), we get a palindrome (235132231532).

The spelling of 131011121401 in words is "one hundred thirty-one billion, eleven million, one hundred twenty-one thousand, four hundred one".

Divisors: 1 17 19 323 405607187 6895322179 7706536553 131011121401