Base | Representation |
---|---|
bin | 10001111010011111110… |
… | …001100111010100110011 |
3 | 11100200112101020222120111 |
4 | 101322133301213110303 |
5 | 130132133023331011 |
6 | 2341311005522151 |
7 | 154640230543156 |
oct | 21723761472463 |
9 | 4320471228514 |
10 | 1231041230131 |
11 | 435099754799 |
12 | 17a701273357 |
13 | 8c1185c46bb |
14 | 43822d73c9d |
15 | 2204ee3c121 |
hex | 11e9fc67533 |
1231041230131 has 8 divisors (see below), whose sum is σ = 1272142081584. Its totient is φ = 1190507287200.
The previous prime is 1231041230117. The next prime is 1231041230143. The reversal of 1231041230131 is 1310321401321.
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 1231041230131 - 215 = 1231041197363 is a prime.
It is a super-2 number, since 2×12310412301312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1231041230231) 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, 141722716 + ... + 141731401.
It is an arithmetic number, because the mean of its divisors is an integer number (159017760198).
Almost surely, 21231041230131 is an apocalyptic number.
1231041230131 is a deficient number, since it is larger than the sum of its proper divisors (41100851453).
1231041230131 is a wasteful number, since it uses less digits than its factorization.
1231041230131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 283454261.
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 1231041230131 its reverse (1310321401321), we get a palindrome (2541362631452).
The spelling of 1231041230131 in words is "one trillion, two hundred thirty-one billion, forty-one million, two hundred thirty thousand, one hundred thirty-one".
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