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131000304001321 = 821915938715659
BaseRepresentation
bin11101110010010011100010…
…100101011110000100101001
3122011211111200102110120200001
4131302103202211132010221
5114132302110311020241
61142340413040143001
736410313440343646
oct3562234245360451
9564744612416601
10131000304001321
1138816a0a48a887
12128388a0907a61
13581337781cb61
14244c63cb3adcd
15102294285e431
hex7724e295e129

131000304001321 has 4 divisors (see below), whose sum is σ = 131016242725200. Its totient is φ = 130984365277444.

The previous prime is 131000304001319. The next prime is 131000304001337. The reversal of 131000304001321 is 123100403000131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131000304001321 - 21 = 131000304001319 is a prime.

It is a super-2 number, since 2×1310003040013212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131000304001621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7969349611 + ... + 7969366048.

It is an arithmetic number, because the mean of its divisors is an integer number (32754060681300).

Almost surely, 2131000304001321 is an apocalyptic number.

It is an amenable number.

131000304001321 is a deficient number, since it is larger than the sum of its proper divisors (15938723879).

131000304001321 is an equidigital number, since it uses as much as digits as its factorization.

131000304001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15938723878.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131000304001321 its reverse (123100403000131), we get a palindrome (254100707001452).

The spelling of 131000304001321 in words is "one hundred thirty-one trillion, three hundred four million, one thousand, three hundred twenty-one".

Divisors: 1 8219 15938715659 131000304001321