Base | Representation |
---|---|
bin | 11101110010100111110001… |
… | …001100110001000111001111 |
3 | 122011220120202010111212120021 |
4 | 131302213301030301013033 |
5 | 114133131101122123211 |
6 | 1142354404211403011 |
7 | 36412012616431555 |
oct | 3562476114610717 |
9 | 564816663455507 |
10 | 131022024020431 |
11 | 388251459056a5 |
12 | 12840b428b3467 |
13 | 581542966307b |
14 | 244d6dd639bd5 |
15 | 10232b45d5771 |
hex | 7729f13311cf |
131022024020431 has 2 divisors, whose sum is σ = 131022024020432. Its totient is φ = 131022024020430.
The previous prime is 131022024020429. The next prime is 131022024020453. The reversal of 131022024020431 is 134020420220131.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 131022024020431 - 21 = 131022024020429 is a prime.
It is a super-2 number, since 2×1310220240204312 (a number of 29 digits) contains 22 as substring.
Together with 131022024020429, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 131022024020396 and 131022024020405.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (131022024000431) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65511012010215 + 65511012010216.
It is an arithmetic number, because the mean of its divisors is an integer number (65511012010216).
Almost surely, 2131022024020431 is an apocalyptic number.
131022024020431 is a deficient number, since it is larger than the sum of its proper divisors (1).
131022024020431 is an equidigital number, since it uses as much as digits as its factorization.
131022024020431 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2304, while the sum is 25.
Adding to 131022024020431 its reverse (134020420220131), we get a palindrome (265042444240562).
The spelling of 131022024020431 in words is "one hundred thirty-one trillion, twenty-two billion, twenty-four million, twenty thousand, four hundred thirty-one".
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