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131322312201 = 3712362326099
BaseRepresentation
bin111101001001101101…
…0110111011000001001
3110112222002002122221210
41322103122313120021
54122422002442301
6140154552523333
712326201143653
oct1722332673011
9415862078853
10131322312201
115076a026933
122154b6b0549
13c4cab224a2
1464dad576d3
153638eaead6
hex1e936b7609

131322312201 has 16 divisors (see below), whose sum is σ = 177576883200. Its totient is φ = 86308173840.

The previous prime is 131322312169. The next prime is 131322312323. The reversal of 131322312201 is 102213223131.

It is not a de Polignac number, because 131322312201 - 25 = 131322312169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131322312601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5018650 + ... + 5044748.

It is an arithmetic number, because the mean of its divisors is an integer number (11098555200).

Almost surely, 2131322312201 is an apocalyptic number.

It is an amenable number.

131322312201 is a deficient number, since it is larger than the sum of its proper divisors (46254570999).

131322312201 is a wasteful number, since it uses less digits than its factorization.

131322312201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49796.

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

Adding to 131322312201 its reverse (102213223131), we get a palindrome (233535535332).

The spelling of 131322312201 in words is "one hundred thirty-one billion, three hundred twenty-two million, three hundred twelve thousand, two hundred one".

Divisors: 1 3 71 213 23623 26099 70869 78297 1677233 1853029 5031699 5559087 616536677 1849610031 43774104067 131322312201