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20122130331 = 323676092077
BaseRepresentation
bin10010101111010111…
…110101011110011011
31220221100100010120100
4102233113311132123
5312202231132311
613124411030443
71311434200002
oct225727653633
956840303510
1020122130331
118596466386
123a96a3b423
131b88a993c4
14d8c5d7c39
157cb842a56
hex4af5f579b

20122130331 has 12 divisors (see below), whose sum is σ = 29144501152. Its totient is φ = 13378198896.

The previous prime is 20122130311. The next prime is 20122130383. The reversal of 20122130331 is 13303122102.

20122130331 is a `hidden beast` number, since 201 + 2 + 2 + 130 + 331 = 666.

It is not a de Polignac number, because 20122130331 - 25 = 20122130299 is a prime.

It is a super-2 number, since 2×201221303312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122130311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3042736 + ... + 3049341.

Almost surely, 220122130331 is an apocalyptic number.

20122130331 is a deficient number, since it is larger than the sum of its proper divisors (9022370821).

20122130331 is a wasteful number, since it uses less digits than its factorization.

20122130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092450 (or 6092447 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20122130331 its reverse (13303122102), we get a palindrome (33425252433).

The spelling of 20122130331 in words is "twenty billion, one hundred twenty-two million, one hundred thirty thousand, three hundred thirty-one".

Divisors: 1 3 9 367 1101 3303 6092077 18276231 54828693 2235792259 6707376777 20122130331