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131011202430223 = 202572164673863
BaseRepresentation
bin11101110010011101101100…
…001011101011010100001111
3122011212112210221210010112221
4131302131230023223110033
5114132441420310231343
61142345414315240211
736411150504432103
oct3562355413532417
9564775727703487
10131011202430223
11388205a2353815
121283aa22749067
1358143c36a385b
14244cd9432b903
151022d7e5385ed
hex77276c2eb50f

131011202430223 has 4 divisors (see below), whose sum is σ = 131011269129808. Its totient is φ = 131011135730640.

The previous prime is 131011202430179. The next prime is 131011202430257. The reversal of 131011202430223 is 322034202110131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131011202430223 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 (131011202430523) 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, 30311211 + ... + 34362652.

It is an arithmetic number, because the mean of its divisors is an integer number (32752817282452).

Almost surely, 2131011202430223 is an apocalyptic number.

131011202430223 is a deficient number, since it is larger than the sum of its proper divisors (66699585).

131011202430223 is an equidigital number, since it uses as much as digits as its factorization.

131011202430223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66699584.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131011202430223 its reverse (322034202110131), we get a palindrome (453045404540354).

The spelling of 131011202430223 in words is "one hundred thirty-one trillion, eleven billion, two hundred two million, four hundred thirty thousand, two hundred twenty-three".

Divisors: 1 2025721 64673863 131011202430223