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131322122213 = 732331177171
BaseRepresentation
bin111101001001101101…
…0001000111111100101
3110112222001202000100012
41322103122020333211
54122421430402323
6140154544500005
712326166423032
oct1722332107745
9415861660305
10131322122213
1150769a07117
122154b61a605
13c4caa86b79
1464dad08389
153638e73678
hex1e93688fe5

131322122213 has 8 divisors (see below), whose sum is σ = 133128491136. Its totient is φ = 129515954400.

The previous prime is 131322122177. The next prime is 131322122233. The reversal of 131322122213 is 312221223131.

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 131322122213 - 218 = 131321860069 is a prime.

It is a super-2 number, since 2×1313221222132 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322122233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663118 + ... + 1740288.

It is an arithmetic number, because the mean of its divisors is an integer number (16641061392).

Almost surely, 2131322122213 is an apocalyptic number.

It is an amenable number.

131322122213 is a deficient number, since it is larger than the sum of its proper divisors (1806368923).

131322122213 is an equidigital number, since it uses as much as digits as its factorization.

131322122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100555.

The product of its digits is 864, while the sum is 23.

Adding to 131322122213 its reverse (312221223131), we get a palindrome (443543345344).

The spelling of 131322122213 in words is "one hundred thirty-one billion, three hundred twenty-two million, one hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 73 23311 77171 1701703 5633483 1798933181 131322122213