Base | Representation |
---|---|
bin | 11011100100001001001011… |
… | …111001011000101010000101 |
3 | 120220020120110020112011112111 |
4 | 123210021023321120222011 |
5 | 111342222112134400201 |
6 | 1105500432320421021 |
7 | 34351436460411301 |
oct | 3344111371305205 |
9 | 526216406464474 |
10 | 121231020231301 |
11 | 3569a8724861a2 |
12 | 1171b473477771 |
13 | 528506157b416 |
14 | 21d18812d8d01 |
15 | e0376c7e5b51 |
hex | 6e424be58a85 |
121231020231301 has 4 divisors (see below), whose sum is σ = 121232613544704. Its totient is φ = 121229426917900.
The previous prime is 121231020231271. The next prime is 121231020231317. The reversal of 121231020231301 is 103132020132121.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 121231020231301 - 235 = 121196660492933 is a prime.
It is a super-2 number, since 2×1212310202313012 (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 (121231020231901) 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, 796542565 + ... + 796694746.
It is an arithmetic number, because the mean of its divisors is an integer number (30308153386176).
Almost surely, 2121231020231301 is an apocalyptic number.
It is an amenable number.
121231020231301 is a deficient number, since it is larger than the sum of its proper divisors (1593313403).
121231020231301 is an equidigital number, since it uses as much as digits as its factorization.
121231020231301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1593313402.
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 121231020231301 its reverse (103132020132121), we get a palindrome (224363040363422).
The spelling of 121231020231301 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, twenty million, two hundred thirty-one thousand, three hundred one".
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