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131141324323421 = 1637206069388757
BaseRepresentation
bin11101110100010110111000…
…000011010011101001011101
3122012022222200101002012012122
4131310112320003103221131
5114142104413011322141
61142525254231112325
736423435161324156
oct3564267003235135
9565288611065178
10131141324323421
11388707a5808025
12128600982126a5
13582375c8b5c29
1424553b9a8692d
151026447e2864b
hex7745b80d3a5d

131141324323421 has 8 divisors (see below), whose sum is σ = 131222409416280. Its totient is φ = 131060240423488.

The previous prime is 131141324323411. The next prime is 131141324323511. The reversal of 131141324323421 is 124323423141131.

It can be written as a sum of positive squares in 4 ways, for example, as 27717588196 + 131113606735225 = 166486^2 + 11450485^2 .

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 131141324323421 - 238 = 130866446416477 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 (131141324323411) 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, 337140575 + ... + 337529331.

It is an arithmetic number, because the mean of its divisors is an integer number (16402801177035).

Almost surely, 2131141324323421 is an apocalyptic number.

It is an amenable number.

131141324323421 is a deficient number, since it is larger than the sum of its proper divisors (81085092859).

131141324323421 is a wasteful number, since it uses less digits than its factorization.

131141324323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596463.

The product of its digits is 41472, while the sum is 35.

Adding to 131141324323421 its reverse (124323423141131), we get a palindrome (255464747464552).

The spelling of 131141324323421 in words is "one hundred thirty-one trillion, one hundred forty-one billion, three hundred twenty-four million, three hundred twenty-three thousand, four hundred twenty-one".

Divisors: 1 1637 206069 388757 337334953 636395209 80110766233 131141324323421