Base | Representation |
---|---|
bin | 110100100001011111100001… |
… | …101010100001111000111111 |
3 | 1010021220101102000112011001101 |
4 | 310201133201222201320333 |
5 | 220234201011044300411 |
6 | 2135143535054353531 |
7 | 66441125433442330 |
oct | 6441374152417077 |
9 | 1107811360464041 |
10 | 231000012103231 |
11 | 67670611746668 |
12 | 21aa94247bb8a7 |
13 | 9bb8291343927 |
14 | 4108662c88287 |
15 | 1ba8c916c08c1 |
hex | d217e1aa1e3f |
231000012103231 has 16 divisors (see below), whose sum is σ = 275478743232000. Its totient is φ = 189390992570208.
The previous prime is 231000012103129. The next prime is 231000012103297. The reversal of 231000012103231 is 132301210000132.
It is a cyclic number.
It is not a de Polignac number, because 231000012103231 - 29 = 231000012102719 is a prime.
It is a super-2 number, since 2×2310000121032312 (a number of 30 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 231000012103199 and 231000012103208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231000012103831) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159425325 + ... + 160867753.
It is an arithmetic number, because the mean of its divisors is an integer number (17217421452000).
Almost surely, 2231000012103231 is an apocalyptic number.
231000012103231 is a deficient number, since it is larger than the sum of its proper divisors (44478731128769).
231000012103231 is a wasteful number, since it uses less digits than its factorization.
231000012103231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2437158.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 231000012103231 its reverse (132301210000132), we get a palindrome (363301222103363).
The spelling of 231000012103231 in words is "two hundred thirty-one trillion, twelve million, one hundred three thousand, two hundred thirty-one".
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