Base | Representation |
---|---|
bin | 111000111101011011… |
… | …0100111101110011011 |
3 | 102200201201002011021111 |
4 | 1301322312213232123 |
5 | 4001002434120011 |
6 | 132105414521151 |
7 | 11560131512221 |
oct | 1617266475633 |
9 | 380651064244 |
10 | 122320223131 |
11 | 4796a6390a7 |
12 | 1b8589661b7 |
13 | b6c4ac0372 |
14 | 5cc555ab11 |
15 | 32ada1e121 |
hex | 1c7ada7b9b |
122320223131 has 4 divisors (see below), whose sum is σ = 129515530392. Its totient is φ = 115124915872.
The previous prime is 122320223059. The next prime is 122320223143. The reversal of 122320223131 is 131322023221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131322023221 = 8431 ⋅15576091.
It is a cyclic number.
It is not a de Polignac number, because 122320223131 - 229 = 121783352219 is a prime.
It is a super-2 number, since 2×1223202231312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122320223161) 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, 3597653605 + ... + 3597653638.
It is an arithmetic number, because the mean of its divisors is an integer number (32378882598).
Almost surely, 2122320223131 is an apocalyptic number.
122320223131 is a deficient number, since it is larger than the sum of its proper divisors (7195307261).
122320223131 is an equidigital number, since it uses as much as digits as its factorization.
122320223131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7195307260.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 122320223131 its reverse (131322023221), we get a palindrome (253642246352).
The spelling of 122320223131 in words is "one hundred twenty-two billion, three hundred twenty million, two hundred twenty-three thousand, one hundred thirty-one".
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