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131312013322 = 279379429523
BaseRepresentation
bin111101001001011001…
…1100101000000001010
3110112221100201102112211
41322102303211000022
54122411333411242
6140153544055334
712326014461040
oct1722263450012
9415840642484
10131312013322
1150764232166
122154816454a
13c4c8957889
1464d9836390
153638128317
hex1e92ce500a

131312013322 has 8 divisors (see below), whose sum is σ = 225106308576. Its totient is φ = 56276577132.

The previous prime is 131312013299. The next prime is 131312013323. The reversal of 131312013322 is 223310213131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131312013293 and 131312013302.

It is not an unprimeable number, because it can be changed into a prime (131312013323) 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, 4689714748 + ... + 4689714775.

It is an arithmetic number, because the mean of its divisors is an integer number (28138288572).

Almost surely, 2131312013322 is an apocalyptic number.

131312013322 is a deficient number, since it is larger than the sum of its proper divisors (93794295254).

131312013322 is an equidigital number, since it uses as much as digits as its factorization.

131312013322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379429532.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131312013322 its reverse (223310213131), we get a palindrome (354622226453).

The spelling of 131312013322 in words is "one hundred thirty-one billion, three hundred twelve million, thirteen thousand, three hundred twenty-two".

Divisors: 1 2 7 14 9379429523 18758859046 65656006661 131312013322