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131021120033 = 317817540679
BaseRepresentation
bin111101000000101110…
…1111010001000100001
3110112012002100111222022
41322001131322020201
54121312401320113
6140105033151225
712315553100456
oct1720135721041
9415162314868
10131021120033
1150625008791
122148685b515
13c4805c7b7b
1464acd5382d
15361c817908
hex1e8177a221

131021120033 has 8 divisors (see below), whose sum is σ = 135265159680. Its totient is φ = 126778177440.

The previous prime is 131021120029. The next prime is 131021120047. The reversal of 131021120033 is 330021120131.

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 131021120033 - 22 = 131021120029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131021119993 and 131021120020.

It is not an unprimeable number, because it can be changed into a prime (131021120023) 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 7 ways as a sum of consecutive naturals, for example, 28013 + ... + 512666.

It is an arithmetic number, because the mean of its divisors is an integer number (16908144960).

Almost surely, 2131021120033 is an apocalyptic number.

It is an amenable number.

131021120033 is a deficient number, since it is larger than the sum of its proper divisors (4244039647).

131021120033 is an equidigital number, since it uses as much as digits as its factorization.

131021120033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548527.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131021120033 its reverse (330021120131), we get a palindrome (461042240164).

The spelling of 131021120033 in words is "one hundred thirty-one billion, twenty-one million, one hundred twenty thousand, thirty-three".

Divisors: 1 31 7817 242327 540679 16761049 4226487743 131021120033