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131303310023 = 177723724119
BaseRepresentation
bin111101001001001001…
…0011000001011000111
3110112220202100020212102
41322102102120023013
54122402121410043
6140153033342315
712325550502014
oct1722222301307
9415822306772
10131303310023
115075a328256
122154526799b
13c4c6bcb2b2
1464d860c70b
1536374a96b8
hex1e924982c7

131303310023 has 4 divisors (see below), whose sum is σ = 139027034160. Its totient is φ = 123579585888.

The previous prime is 131303309939. The next prime is 131303310067. The reversal of 131303310023 is 320013303131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320013303131 = 2831130789057.

It is a cyclic number.

It is not a de Polignac number, because 131303310023 - 216 = 131303244487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131303309977 and 131303310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303310323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3861862043 + ... + 3861862076.

It is an arithmetic number, because the mean of its divisors is an integer number (34756758540).

Almost surely, 2131303310023 is an apocalyptic number.

131303310023 is a deficient number, since it is larger than the sum of its proper divisors (7723724137).

131303310023 is an equidigital number, since it uses as much as digits as its factorization.

131303310023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723724136.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 131303310023 its reverse (320013303131), we get a palindrome (451316613154).

The spelling of 131303310023 in words is "one hundred thirty-one billion, three hundred three million, three hundred ten thousand, twenty-three".

Divisors: 1 17 7723724119 131303310023