Base | Representation |
---|---|
bin | 11111000000110000000… |
… | …100010111110001011011 |
3 | 21112201202201212200101102 |
4 | 133000300010113301123 |
5 | 234404003204344011 |
6 | 4311004000142015 |
7 | 306652620036620 |
oct | 37006004276133 |
9 | 7481681780342 |
10 | 2131110231131 |
11 | 751887193002 |
12 | 2a503460790b |
13 | 125c6945c6ab |
14 | 7520959c347 |
15 | 3a67d54873b |
hex | 1f030117c5b |
2131110231131 has 8 divisors (see below), whose sum is σ = 2435586451200. Its totient is φ = 1826641986408.
The previous prime is 2131110231119. The next prime is 2131110231181. The reversal of 2131110231131 is 1311320111312.
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 2131110231131 - 26 = 2131110231067 is a prime.
It is a super-2 number, since 2×21311102311312 (a number of 25 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2131110231181) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409831 + ... + 2499968.
It is an arithmetic number, because the mean of its divisors is an integer number (304448306400).
Almost surely, 22131110231131 is an apocalyptic number.
2131110231131 is a deficient number, since it is larger than the sum of its proper divisors (304476220069).
2131110231131 is an equidigital number, since it uses as much as digits as its factorization.
2131110231131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3987673.
The product of its (nonzero) digits is 108, while the sum is 20.
Adding to 2131110231131 its reverse (1311320111312), we get a palindrome (3442430342443).
The spelling of 2131110231131 in words is "two trillion, one hundred thirty-one billion, one hundred ten million, two hundred thirty-one thousand, one hundred thirty-one".
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