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131222123333321 = 1923892890928231
BaseRepresentation
bin11101110101100010001000…
…000011000100011011001001
3122012121201020101200011201212
4131311202020003010123021
5114144420402033131241
61143030340010222505
736432325354506536
oct3565421003043311
9565551211604655
10131222123333321
11388a1a98739069
1212873887724a35
13582b268415067
1424592829add8d
1510285c6625beb
hex7758880c46c9

131222123333321 has 8 divisors (see below), whose sum is σ = 138186369489600. Its totient is φ = 124263659038320.

The previous prime is 131222123333293. The next prime is 131222123333417. The reversal of 131222123333321 is 123333321222131.

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 131222123333321 - 210 = 131222123332297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131222123330321) 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, 1445418725 + ... + 1445509506.

It is an arithmetic number, because the mean of its divisors is an integer number (17273296186200).

Almost surely, 2131222123333321 is an apocalyptic number.

It is an amenable number.

131222123333321 is a deficient number, since it is larger than the sum of its proper divisors (6964246156279).

131222123333321 is a wasteful number, since it uses less digits than its factorization.

131222123333321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890930639.

The product of its digits is 23328, while the sum is 32.

Adding to 131222123333321 its reverse (123333321222131), we get a palindrome (254555444555452).

The spelling of 131222123333321 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, one hundred twenty-three million, three hundred thirty-three thousand, three hundred twenty-one".

Divisors: 1 19 2389 45391 2890928231 54927636389 6906427543859 131222123333321