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131333113213 = 439299164267
BaseRepresentation
bin111101001010000010…
…0000100010101111101
3110112222211102102011021
41322110010010111331
54122432234110323
6140200020224141
712326362020541
oct1722404042575
9415884372137
10131333113213
1150775133895
122155323b051
13c500134813
1464dc569a21
153639de505d
hex1e9410457d

131333113213 has 4 divisors (see below), whose sum is σ = 131632277920. Its totient is φ = 131033948508.

The previous prime is 131333113201. The next prime is 131333113229. The reversal of 131333113213 is 312311333131.

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 131333113213 - 213 = 131333105021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131333113313) 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, 149581695 + ... + 149582572.

It is an arithmetic number, because the mean of its divisors is an integer number (32908069480).

Almost surely, 2131333113213 is an apocalyptic number.

It is an amenable number.

131333113213 is a deficient number, since it is larger than the sum of its proper divisors (299164707).

131333113213 is an equidigital number, since it uses as much as digits as its factorization.

131333113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299164706.

The product of its digits is 1458, while the sum is 25.

Adding to 131333113213 its reverse (312311333131), we get a palindrome (443644446344).

The spelling of 131333113213 in words is "one hundred thirty-one billion, three hundred thirty-three million, one hundred thirteen thousand, two hundred thirteen".

Divisors: 1 439 299164267 131333113213