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131331130133 = 718761590019
BaseRepresentation
bin111101001001111110…
…0100000001100010101
3110112222200200122212212
41322103330200030111
54122431232131013
6140155505523205
712326336121140
oct1722374401425
9415880618785
10131331130133
1150773aa9985
1221552643505
13c4cc8bbcb8
1464dc1b1057
153639b526a8
hex1e93f20315

131331130133 has 4 divisors (see below), whose sum is σ = 150092720160. Its totient is φ = 112569540108.

The previous prime is 131331130129. The next prime is 131331130199. The reversal of 131331130133 is 331031133131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131331130133 - 22 = 131331130129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131331130099 and 131331130108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331130433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380795003 + ... + 9380795016.

It is an arithmetic number, because the mean of its divisors is an integer number (37523180040).

Almost surely, 2131331130133 is an apocalyptic number.

It is an amenable number.

131331130133 is a deficient number, since it is larger than the sum of its proper divisors (18761590027).

131331130133 is an equidigital number, since it uses as much as digits as its factorization.

131331130133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18761590026.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 131331130133 its reverse (331031133131), we get a palindrome (462362263264).

The spelling of 131331130133 in words is "one hundred thirty-one billion, three hundred thirty-one million, one hundred thirty thousand, one hundred thirty-three".

Divisors: 1 7 18761590019 131331130133