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131311113023 = 1717943151861
BaseRepresentation
bin111101001001011000…
…0001001001100111111
3110112221022000200120102
41322102300021030333
54122411121104043
6140153512511315
712326004021206
oct1722260111477
9415838020512
10131311113023
1150763777812
12215479ab53b
13c4c8700b5c
1464d968023d
153637eeb6b8
hex1e92c0933f

131311113023 has 8 divisors (see below), whose sum is σ = 139812032880. Its totient is φ = 122896497280.

The previous prime is 131311113019. The next prime is 131311113029. The reversal of 131311113023 is 320311113131.

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 131311113023 - 22 = 131311113019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131311112986 and 131311113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311113029) 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, 21572888 + ... + 21578973.

It is an arithmetic number, because the mean of its divisors is an integer number (17476504110).

Almost surely, 2131311113023 is an apocalyptic number.

131311113023 is a deficient number, since it is larger than the sum of its proper divisors (8500919857).

131311113023 is a wasteful number, since it uses less digits than its factorization.

131311113023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43152057.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131311113023 its reverse (320311113131), we get a palindrome (451622226154).

The spelling of 131311113023 in words is "one hundred thirty-one billion, three hundred eleven million, one hundred thirteen thousand, twenty-three".

Divisors: 1 17 179 3043 43151861 733581637 7724183119 131311113023