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131321102223 = 31737271256799
BaseRepresentation
bin111101001001101011…
…0001111111110001111
3110112221222211012011210
41322103112033332033
54122421200232343
6140154510545503
712326154644223
oct1722326177617
9415858735153
10131321102223
115076937a853
122154b208293
13c4ca7ba81c
1464dab20783
153638d21333
hex1e9358ff8f

131321102223 has 32 divisors (see below), whose sum is σ = 191108505600. Its totient is φ = 79874449920.

The previous prime is 131321102179. The next prime is 131321102249. The reversal of 131321102223 is 322201123131.

It is not a de Polignac number, because 131321102223 - 29 = 131321101711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131321102223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321102293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382978 + ... + 639776.

It is an arithmetic number, because the mean of its divisors is an integer number (5972140800).

Almost surely, 2131321102223 is an apocalyptic number.

131321102223 is a deficient number, since it is larger than the sum of its proper divisors (59787403377).

131321102223 is a wasteful number, since it uses less digits than its factorization.

131321102223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257127.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131321102223 its reverse (322201123131), we get a palindrome (453522225354).

The spelling of 131321102223 in words is "one hundred thirty-one billion, three hundred twenty-one million, one hundred two thousand, two hundred twenty-three".

Divisors: 1 3 17 37 51 111 271 629 813 1887 4607 10027 13821 30081 170459 256799 511377 770397 4365583 9501563 13096749 28504689 69592529 161526571 208777587 484579713 1183072993 2574923573 3549218979 7724770719 43773700741 131321102223