Base | Representation |
---|---|
bin | 11101110010011110101000… |
… | …010100010010010111110111 |
3 | 122011212122102021012001120111 |
4 | 131302132220110102113313 |
5 | 114133001002044222221 |
6 | 1142350102355243451 |
7 | 36411214505030446 |
oct | 3562365024222767 |
9 | 564778367161514 |
10 | 131012211320311 |
11 | 38820a6a899882 |
12 | 1283b0645a9587 |
13 | 5814524704339 |
14 | 244d04c310d5d |
15 | 1022ddcdc3be1 |
hex | 7727a85125f7 |
131012211320311 has 4 divisors (see below), whose sum is σ = 131102751896272. Its totient is φ = 130921670744352.
The previous prime is 131012211320273. The next prime is 131012211320321. The reversal of 131012211320311 is 113023112210131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 131012211320311 - 225 = 131012177765879 is a prime.
It is a super-2 number, since 2×1310122113203112 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131012211320321) 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, 45270285810 + ... + 45270288703.
It is an arithmetic number, because the mean of its divisors is an integer number (32775687974068).
Almost surely, 2131012211320311 is an apocalyptic number.
131012211320311 is a deficient number, since it is larger than the sum of its proper divisors (90540575961).
131012211320311 is an equidigital number, since it uses as much as digits as its factorization.
131012211320311 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 90540575960.
The product of its (nonzero) digits is 216, while the sum is 22.
Adding to 131012211320311 its reverse (113023112210131), we get a palindrome (244035323530442).
The spelling of 131012211320311 in words is "one hundred thirty-one trillion, twelve billion, two hundred eleven million, three hundred twenty thousand, three hundred eleven".
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